diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9ccfdd3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+__pycache__/
+*.py[cod]
+*.egg-info/
+.idea/
+.vscode/
+*.swp
diff --git a/activeblue_familylaw/__manifest__.py b/activeblue_familylaw/__manifest__.py
index b9d0fea..9a24f90 100644
--- a/activeblue_familylaw/__manifest__.py
+++ b/activeblue_familylaw/__manifest__.py
@@ -55,6 +55,7 @@
         'views/fl_statute_views.xml',
         'views/fl_wizard_views.xml',
         'views/fl_discovery_suggest_views.xml',
+        'views/fl_conflict_check_views.xml',
         'views/menu_views.xml',
         # Phase 4 — QWeb PDF Reports
         'report/report_financial_affidavit_short.xml',
diff --git a/activeblue_familylaw/models/__init__.py b/activeblue_familylaw/models/__init__.py
index 725a64a..ee7a77a 100644
--- a/activeblue_familylaw/models/__init__.py
+++ b/activeblue_familylaw/models/__init__.py
@@ -15,3 +15,4 @@ from . import fl_analysis
 from . import fl_ai_engine
 from . import fl_argument
 from . import fl_case
+from . import fl_conflict_check
diff --git a/activeblue_familylaw/models/fl_analysis.py b/activeblue_familylaw/models/fl_analysis.py
index 9e774f9..f241047 100644
--- a/activeblue_familylaw/models/fl_analysis.py
+++ b/activeblue_familylaw/models/fl_analysis.py
@@ -2,10 +2,7 @@ from odoo import fields, models
 
 
 class FlAnalysis(models.Model):
-    """
-    Phase 5 — Full Ollama AI analysis implementation.
-    Phase 1: Stub with fields required by fl_case computed fields.
-    """
+    """AI case analysis record. Written by the Claude API engine (fl.ai.engine)."""
     _name = 'fl.analysis'
     _description = 'AI Case Analysis Result'
     _order = 'create_date desc'
@@ -19,7 +16,7 @@ class FlAnalysis(models.Model):
     )
     model_used = fields.Char(
         string='AI Model',
-        default='llama3.1'
+        default='claude-sonnet-4-20250514'
     )
 
     # ── Results (referenced by fl_case related fields) ─────────────────────
@@ -67,7 +64,7 @@ class FlAnalysis(models.Model):
     ], string='Case Complexity')
     raw_response = fields.Text(
         string='Raw AI Response',
-        help='Full JSON response from Ollama — for debugging'
+        help='Full JSON response from the Claude API — for debugging'
     )
     error_message = fields.Text(
         string='Error (if analysis failed)'
diff --git a/activeblue_familylaw/models/fl_case.py b/activeblue_familylaw/models/fl_case.py
index dbc782e..27a16d0 100644
--- a/activeblue_familylaw/models/fl_case.py
+++ b/activeblue_familylaw/models/fl_case.py
@@ -1,4 +1,5 @@
 from odoo import _, api, fields, models
+from odoo.exceptions import UserError
 from dateutil.relativedelta import relativedelta
 
 
@@ -86,6 +87,23 @@ class FlCase(models.Model):
     )
     active = fields.Boolean(default=True)
 
+    # ══════════════════════════════════════════════════════════════════════
+    # CONFLICT OF INTEREST
+    # ══════════════════════════════════════════════════════════════════════
+
+    conflict_check_passed = fields.Boolean(
+        string='Conflict Check Passed',
+        default=False, tracking=True,
+        help='Case cannot advance past Intake until the conflict-of-interest '
+             'check passes (or is overridden by an administrator).'
+    )
+    conflict_check_id = fields.Many2one(
+        'fl.conflict.check', string='Latest Conflict Check', readonly=True
+    )
+    conflict_check_ids = fields.One2many(
+        'fl.conflict.check', 'case_id', string='Conflict Checks'
+    )
+
     # ══════════════════════════════════════════════════════════════════════
     # PARTIES
     # ══════════════════════════════════════════════════════════════════════
@@ -794,6 +812,8 @@ class FlCase(models.Model):
                 ) or _('New')
         records = super().create(vals_list)
         for record in records:
+            # 0. Conflict-of-interest screen — runs before any other action
+            self.env['fl.conflict.check'].run_check(record)
             # 1. Create Odoo project for task management
             record._create_case_project()
             # 2. Generate deadlines if filing date already set
@@ -807,6 +827,20 @@ class FlCase(models.Model):
         return records
 
     def write(self, vals):
+        # Block advancing past Intake until conflict check has passed
+        if vals.get('stage_id'):
+            new_stage = self.env['fl.case.stage'].browse(vals['stage_id'])
+            intake = self.env.ref(
+                'activeblue_familylaw.fl_stage_intake', raise_if_not_found=False
+            )
+            if intake and new_stage.sequence > intake.sequence:
+                for rec in self:
+                    if not rec.conflict_check_passed:
+                        raise UserError(_(
+                            "Cannot advance case %s past Intake: the "
+                            "conflict-of-interest check has not passed. Resolve or "
+                            "override the conflict before changing the stage."
+                        ) % rec.name)
         result = super().write(vals)
         # Recalculate service-anchored deadlines when service_date is set/changed
         if 'service_date' in vals:
@@ -1090,3 +1124,15 @@ class FlCase(models.Model):
             'target': 'new',
             'context': {'default_case_id': self.id},
         }
+
+    def action_run_conflict_check(self):
+        self.ensure_one()
+        check = self.env['fl.conflict.check'].run_check(self)
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Conflict Check Result',
+            'res_model': 'fl.conflict.check',
+            'res_id': check.id,
+            'view_mode': 'form',
+            'target': 'new',
+        }
diff --git a/activeblue_familylaw/models/fl_conflict_check.py b/activeblue_familylaw/models/fl_conflict_check.py
new file mode 100644
index 0000000..d0a9889
--- /dev/null
+++ b/activeblue_familylaw/models/fl_conflict_check.py
@@ -0,0 +1,215 @@
+import difflib
+import logging
+
+from odoo import _, api, fields, models
+from odoo.exceptions import UserError
+
+_logger = logging.getLogger(__name__)
+
+# Fuzzy name-match threshold (difflib.SequenceMatcher ratio). Per spec.
+FUZZY_THRESHOLD = 0.85
+
+
+class FlConflictCheck(models.Model):
+    _name = 'fl.conflict.check'
+    _description = 'Conflict of Interest Check'
+    _inherit = ['mail.thread']
+    _order = 'create_date desc'
+    _rec_name = 'name'
+
+    name = fields.Char(
+        string='Reference', compute='_compute_name', store=True
+    )
+    case_id = fields.Many2one(
+        'fl.case', string='Case', required=True,
+        ondelete='cascade', index=True
+    )
+    check_date = fields.Datetime(
+        string='Check Date', default=fields.Datetime.now, readonly=True
+    )
+    status = fields.Selection([
+        ('clear', 'Clear — No Conflict'),
+        ('conflict', 'Conflict Detected'),
+        ('override', 'Conflict Overridden'),
+    ], string='Status', default='clear', required=True, tracking=True)
+    matched_case_ids = fields.Many2many(
+        'fl.case', 'fl_conflict_check_matched_case_rel',
+        'conflict_id', 'matched_case_id',
+        string='Conflicting Cases'
+    )
+    match_detail = fields.Text(string='Match Detail', readonly=True)
+
+    # ── Override (group_admin only) ────────────────────────────────────────
+    override_justification = fields.Text(
+        string='Override Justification',
+        help='Written justification required to override a detected conflict.'
+    )
+    override_user_id = fields.Many2one(
+        'res.users', string='Overridden By', readonly=True
+    )
+    override_date = fields.Datetime(string='Override Date', readonly=True)
+
+    @api.depends('case_id', 'case_id.name')
+    def _compute_name(self):
+        for rec in self:
+            rec.name = _('Conflict Check — %s') % (rec.case_id.name or _('New'))
+
+    # ──────────────────────────────────────────────────────────────────────
+    # Engine
+    # ──────────────────────────────────────────────────────────────────────
+
+    @api.model
+    def run_check(self, case):
+        """
+        Run a conflict-of-interest screen for the given case.
+        Creates and returns an fl.conflict.check record, sets
+        case.conflict_check_passed and links the latest check.
+        Never silently passes a conflict — always surfaces it to chatter.
+        """
+        names = self._collect_party_names(case)
+        matches = self._find_conflicts(case, names)
+
+        check = self.create({
+            'case_id': case.id,
+            'status': 'conflict' if matches else 'clear',
+            'matched_case_ids': (
+                [(6, 0, list({m['case_id'] for m in matches}))] if matches else False
+            ),
+            'match_detail': (
+                self._format_matches(matches) if matches else 'No conflicts found.'
+            ),
+        })
+
+        case.conflict_check_id = check.id
+
+        if matches:
+            case.conflict_check_passed = False
+            case.message_post(
+                body=(
+                    '<div style="background:#f8d7da;border:2px solid #dc3545;'
+                    'padding:12px;border-radius:4px;">'
+                    '<h4 style="color:#721c24;margin:0 0 8px 0;">'
+                    '🚩 CONFLICT OF INTEREST DETECTED</h4>'
+                    '<p>One or more parties on this case match parties on other '
+                    'open cases. This case <b>cannot advance past Intake</b> until '
+                    'the conflict is resolved or overridden by an administrator.</p>'
+                    '<pre style="white-space:pre-wrap;margin:0;">'
+                    f'{self._format_matches(matches)}</pre>'
+                    '</div>'
+                ),
+                subtype_xmlid='mail.mt_comment',
+            )
+        else:
+            case.conflict_check_passed = True
+            case.message_post(
+                body='✅ Conflict-of-interest check clear — no matching parties on other open cases.',
+                subtype_xmlid='mail.mt_note',
+            )
+
+        _logger.info(
+            "FL Conflict Check: case %s → %s (%d match(es))",
+            case.id, check.status, len(matches)
+        )
+        return check
+
+    def _collect_party_names(self, case):
+        """
+        Collect (partner_id, name, role_label) tuples for every party on a case.
+        Pulls from petitioner_id, respondent_id, and party_ids — deduplicated by
+        partner. Drops entries with no name.
+        """
+        entries = []
+        seen = set()
+
+        def _add(partner, role_label):
+            if partner and partner.id not in seen and partner.name:
+                entries.append((partner.id, partner.name, role_label))
+                seen.add(partner.id)
+
+        _add(case.petitioner_id, 'Petitioner')
+        _add(case.respondent_id, 'Respondent')
+        for party in case.party_ids:
+            role_label = dict(party._fields['role'].selection).get(party.role, '')
+            _add(party.partner_id, role_label)
+
+        return entries
+
+    def _find_conflicts(self, case, names):
+        """
+        Compare this case's party names against parties on other open cases.
+        Exact partner-id match OR fuzzy name match (>= FUZZY_THRESHOLD) flags a
+        conflict. Folded stages (Closed, Referred to Attorney) are treated as
+        not-open and skipped. Returns a list of match dicts.
+        """
+        if not names:
+            return []
+
+        other_cases = self.env['fl.case'].search([
+            ('id', '!=', case.id),
+            ('active', '=', True),
+        ])
+
+        matches = []
+        for other in other_cases:
+            if other.stage_id and other.stage_id.fold:
+                continue
+            other_names = self._collect_party_names(other)
+            for pid, pname, prole in names:
+                for opid, opname, oprole in other_names:
+                    if pid == opid:
+                        ratio = 1.0
+                    else:
+                        ratio = difflib.SequenceMatcher(
+                            None,
+                            (pname or '').lower().strip(),
+                            (opname or '').lower().strip(),
+                        ).ratio()
+                    if ratio >= FUZZY_THRESHOLD:
+                        matches.append({
+                            'case_id': other.id,
+                            'case_ref': other.name,
+                            'new_party': f'{pname} ({prole})',
+                            'existing_party': f'{opname} ({oprole})',
+                            'score': round(ratio, 2),
+                        })
+        return matches
+
+    def _format_matches(self, matches):
+        lines = []
+        for m in matches:
+            lines.append(
+                f"• {m['new_party']} ↔ {m['existing_party']} "
+                f"on case {m['case_ref']} (similarity {m['score']:.0%})"
+            )
+        return '\n'.join(lines)
+
+    # ──────────────────────────────────────────────────────────────────────
+    # Actions
+    # ──────────────────────────────────────────────────────────────────────
+
+    def action_override(self):
+        """Manager-only override of a detected conflict. Requires justification."""
+        self.ensure_one()
+        if not self.env.user.has_group('activeblue_familylaw.group_admin'):
+            raise UserError(_(
+                'Only a Family Law Administrator can override a conflict of interest.'
+            ))
+        if not (self.override_justification or '').strip():
+            raise UserError(_(
+                'A written justification is required to override a conflict.'
+            ))
+        self.write({
+            'status': 'override',
+            'override_user_id': self.env.user.id,
+            'override_date': fields.Datetime.now(),
+        })
+        self.case_id.conflict_check_passed = True
+        self.case_id.message_post(
+            body=(
+                f'<strong>⚠ CONFLICT OVERRIDE</strong> authorized by '
+                f'{self.env.user.name}.<br/>'
+                f'<b>Justification:</b> {self.override_justification}'
+            ),
+            subtype_xmlid='mail.mt_comment',
+        )
+        return True
diff --git a/activeblue_familylaw/security/ir.model.access.csv b/activeblue_familylaw/security/ir.model.access.csv
index a4dd4f5..358f772 100644
--- a/activeblue_familylaw/security/ir.model.access.csv
+++ b/activeblue_familylaw/security/ir.model.access.csv
@@ -78,6 +78,9 @@ access_fl_fee_waiver_petitioner,fl.fee.waiver petitioner,model_fl_fee_waiver,gro
 access_fl_income_withholding_admin,fl.income.withholding admin,model_fl_income_withholding,group_admin,1,1,1,1
 access_fl_income_withholding_paralegal,fl.income.withholding paralegal,model_fl_income_withholding,group_paralegal,1,1,1,0
 access_fl_income_withholding_petitioner,fl.income.withholding petitioner,model_fl_income_withholding,group_portal_petitioner,1,0,0,0
+# ── fl.conflict.check ────────────────────────────────────────────────────────
+access_fl_conflict_check_admin,fl.conflict.check admin,model_fl_conflict_check,group_admin,1,1,1,1
+access_fl_conflict_check_paralegal,fl.conflict.check paralegal,model_fl_conflict_check,group_paralegal,1,1,1,0
 # ── fl.intake.wizard ─────────────────────────────────────────────────────────
 access_fl_intake_wizard_admin,fl.intake.wizard admin,model_fl_intake_wizard,group_admin,1,1,1,1
 access_fl_intake_wizard_paralegal,fl.intake.wizard paralegal,model_fl_intake_wizard,group_paralegal,1,1,1,1
diff --git a/activeblue_familylaw/views/fl_case_views.xml b/activeblue_familylaw/views/fl_case_views.xml
index 0bfb04a..9203716 100644
--- a/activeblue_familylaw/views/fl_case_views.xml
+++ b/activeblue_familylaw/views/fl_case_views.xml
@@ -18,6 +18,9 @@
                         <button name="action_open_support_calculator" string="Open Calculator"
                                 type="object"
                                 attrs="{'invisible': [('case_type', 'not in', ['modification','dissolution_children','paternity','custody_modification'])]}"/>
+                        <button name="action_run_conflict_check" string="Run Conflict Check"
+                                type="object"
+                                groups="activeblue_familylaw.group_admin,activeblue_familylaw.group_paralegal"/>
                     </header>
 
                     <!-- Attorney Referral Banner -->
@@ -29,6 +32,18 @@
                         <br/>Legal Services of Greater Miami: (305) 576-0080
                     </div>
 
+                    <!-- Conflict of Interest Banner -->
+                    <div class="alert alert-danger" role="alert"
+                         attrs="{'invisible': ['|', ('conflict_check_passed', '=', True), ('conflict_check_id', '=', False)]}">
+                        <strong>🚩 CONFLICT OF INTEREST — UNRESOLVED</strong>
+                        — A conflict check has flagged matching parties on other open cases.
+                        This case cannot advance past Intake until the conflict is overridden by an administrator.
+                        Open the
+                        <button name="action_run_conflict_check" type="object"
+                                class="btn btn-link p-0 align-baseline" string="conflict check"/>
+                        for details.
+                    </div>
+
                     <!-- DV Safety Note -->
                     <field name="dv_safety_note" widget="html"
                            attrs="{'invisible': [('domestic_violence_flag', '=', False)]}"/>
@@ -97,10 +112,16 @@
                                         <field name="respondent_answered"/>
                                     </group>
                                 </group>
-                                <group string="Safety Flags">
-                                    <field name="domestic_violence_flag"/>
-                                    <field name="dv_injunction_active"
-                                           attrs="{'invisible': [('domestic_violence_flag', '=', False)]}"/>
+                                <group>
+                                    <group string="Safety Flags">
+                                        <field name="domestic_violence_flag"/>
+                                        <field name="dv_injunction_active"
+                                               attrs="{'invisible': [('domestic_violence_flag', '=', False)]}"/>
+                                    </group>
+                                    <group string="Conflict of Interest">
+                                        <field name="conflict_check_passed" readonly="1"/>
+                                        <field name="conflict_check_id" readonly="1"/>
+                                    </group>
                                 </group>
                                 <separator string="Party Details (Income, Employment, Service)"/>
                                 <field name="party_ids">
@@ -375,6 +396,8 @@
                     <field name="attorney_referral_flag"/>
                     <field name="domestic_violence_flag"/>
                     <field name="overdue_deadline_count"/>
+                    <field name="conflict_check_passed"/>
+                    <field name="conflict_check_id"/>
                     <field name="petitioner_id"/>
                     <templates>
                         <t t-name="kanban-card">
@@ -404,6 +427,9 @@
                                             <t t-esc="record.overdue_deadline_count.raw_value"/> Overdue
                                         </span>
                                     </t>
+                                    <t t-if="record.conflict_check_id.raw_value &amp;&amp; !record.conflict_check_passed.raw_value">
+                                        <span class="badge rounded-pill text-bg-danger ms-1">Conflict</span>
+                                    </t>
                                 </div>
                                 <div class="o_kanban_record_bottom" t-if="record.next_deadline.raw_value">
                                     <div class="oe_kanban_bottom_left text-muted small">
diff --git a/activeblue_familylaw/views/fl_conflict_check_views.xml b/activeblue_familylaw/views/fl_conflict_check_views.xml
new file mode 100644
index 0000000..b8e02f5
--- /dev/null
+++ b/activeblue_familylaw/views/fl_conflict_check_views.xml
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <data>
+
+        <!-- ══════════════════════════════════════════════════════
+             FORM VIEW
+        ══════════════════════════════════════════════════════ -->
+        <record id="view_fl_conflict_check_form" model="ir.ui.view">
+            <field name="name">fl.conflict.check.form</field>
+            <field name="model">fl.conflict.check</field>
+            <field name="arch" type="xml">
+                <form string="Conflict of Interest Check">
+                    <header>
+                        <button name="action_override" string="Override Conflict"
+                                type="object" class="oe_highlight"
+                                confirm="Override this conflict of interest? This allows the case to advance past Intake. A justification is required."
+                                attrs="{'invisible': [('status', '!=', 'conflict')]}"
+                                groups="activeblue_familylaw.group_admin"/>
+                        <field name="status" widget="statusbar"
+                               statusbar_visible="clear,conflict,override"/>
+                    </header>
+                    <sheet>
+                        <div class="alert alert-success" role="alert"
+                             attrs="{'invisible': [('status', '!=', 'clear')]}">
+                            <strong>✅ CLEAR</strong> — No conflicting parties found on other open cases.
+                        </div>
+                        <div class="alert alert-danger" role="alert"
+                             attrs="{'invisible': [('status', '!=', 'conflict')]}">
+                            <strong>🚩 CONFLICT DETECTED</strong> — One or more parties match
+                            parties on other open cases. The case cannot advance past Intake
+                            until this is overridden by an administrator.
+                        </div>
+                        <div class="alert alert-warning" role="alert"
+                             attrs="{'invisible': [('status', '!=', 'override')]}">
+                            <strong>⚠ OVERRIDDEN</strong> — This conflict was overridden by
+                            <field name="override_user_id" readonly="1" nolabel="1" class="oe_inline"/>
+                            on <field name="override_date" readonly="1" nolabel="1" class="oe_inline"/>.
+                        </div>
+                        <group>
+                            <group>
+                                <field name="case_id"/>
+                                <field name="check_date"/>
+                            </group>
+                            <group>
+                                <field name="matched_case_ids" widget="many2many_tags"
+                                       attrs="{'invisible': [('matched_case_ids', '=', [])]}"/>
+                            </group>
+                        </group>
+                        <separator string="Match Detail"/>
+                        <field name="match_detail" nolabel="1" readonly="1"/>
+                        <separator string="Override Justification"
+                                   attrs="{'invisible': [('status', '=', 'clear')]}"/>
+                        <field name="override_justification" nolabel="1"
+                               placeholder="Required to override a conflict — explain why the firm may proceed despite the match."
+                               attrs="{'invisible': [('status', '=', 'clear')], 'readonly': [('status', '=', 'override')]}"/>
+                    </sheet>
+                    <div class="oe_chatter">
+                        <field name="message_follower_ids"/>
+                        <field name="message_ids"/>
+                    </div>
+                </form>
+            </field>
+        </record>
+
+        <!-- ══════════════════════════════════════════════════════
+             TREE VIEW
+        ══════════════════════════════════════════════════════ -->
+        <record id="view_fl_conflict_check_tree" model="ir.ui.view">
+            <field name="name">fl.conflict.check.tree</field>
+            <field name="model">fl.conflict.check</field>
+            <field name="arch" type="xml">
+                <tree string="Conflict Checks"
+                      decoration-danger="status == 'conflict'"
+                      decoration-warning="status == 'override'"
+                      decoration-success="status == 'clear'">
+                    <field name="case_id"/>
+                    <field name="check_date"/>
+                    <field name="status"/>
+                    <field name="matched_case_ids" widget="many2many_tags"/>
+                </tree>
+            </field>
+        </record>
+
+        <!-- ══════════════════════════════════════════════════════
+             SEARCH VIEW
+        ══════════════════════════════════════════════════════ -->
+        <record id="view_fl_conflict_check_search" model="ir.ui.view">
+            <field name="name">fl.conflict.check.search</field>
+            <field name="model">fl.conflict.check</field>
+            <field name="arch" type="xml">
+                <search string="Search Conflict Checks">
+                    <field name="case_id"/>
+                    <filter string="Conflicts" name="conflicts"
+                            domain="[('status', '=', 'conflict')]"/>
+                    <filter string="Overridden" name="overridden"
+                            domain="[('status', '=', 'override')]"/>
+                    <filter string="Clear" name="clear"
+                            domain="[('status', '=', 'clear')]"/>
+                    <group expand="0" string="Group By">
+                        <filter string="Status" name="group_status"
+                                context="{'group_by': 'status'}"/>
+                    </group>
+                </search>
+            </field>
+        </record>
+
+        <!-- ══════════════════════════════════════════════════════
+             ACTION
+        ══════════════════════════════════════════════════════ -->
+        <record id="action_fl_conflict_check_list" model="ir.actions.act_window">
+            <field name="name">Conflict Checks</field>
+            <field name="res_model">fl.conflict.check</field>
+            <field name="view_mode">tree,form</field>
+            <field name="search_view_id" ref="view_fl_conflict_check_search"/>
+            <field name="context">{'search_default_conflicts': 1}</field>
+        </record>
+
+    </data>
+</odoo>
diff --git a/activeblue_familylaw/views/menu_views.xml b/activeblue_familylaw/views/menu_views.xml
index 89064b2..21adf65 100644
--- a/activeblue_familylaw/views/menu_views.xml
+++ b/activeblue_familylaw/views/menu_views.xml
@@ -87,6 +87,13 @@
             action="action_fl_discovery_list"
             sequence="60"/>
 
+        <menuitem
+            id="menu_fl_conflict_checks"
+            name="Conflict Checks"
+            parent="menu_fl_cases"
+            action="action_fl_conflict_check_list"
+            sequence="70"/>
+
         <!-- ══════════════════════════════════════════════════════
              SUPPORT CALCULATOR SUB-MENU
         ══════════════════════════════════════════════════════ -->