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diff --git a/api/__pycache__/urls.cpython-313.pyc b/api/__pycache__/urls.cpython-313.pyc
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diff --git a/app/__pycache__/document_generator.cpython-313.pyc b/app/__pycache__/document_generator.cpython-313.pyc
index 556ad7a9..0d8051ca 100644
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diff --git a/app/__pycache__/models.cpython-313.pyc b/app/__pycache__/models.cpython-313.pyc
index 539332c8..62667e9a 100644
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diff --git a/app/__pycache__/payment.cpython-313.pyc b/app/__pycache__/payment.cpython-313.pyc
index 1be4eff4..563ece8a 100644
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diff --git a/app/document_generator.py b/app/document_generator.py
index 505ac2f3..d17f6886 100644
--- a/app/document_generator.py
+++ b/app/document_generator.py
@@ -1,7 +1,7 @@
 import os
 import subprocess
 from datetime import datetime
-
+from django.db import models
 import numpy as np
 from docx import Document
 from docx.enum.text import WD_ALIGN_PARAGRAPH
@@ -206,13 +206,23 @@ class DocumentGenerator:
             raise ValueError(f"Could not resolve '{lookup_from}'. It is not a valid API parameter or a reference to another data source.")
 
     def _get_value_from_object(self, obj, field_path):
-        if obj is None:
+        if not obj:
             return None
+        
+        parts = field_path.split('.')
         value = obj
-        for part in field_path.replace("__", ".").split("."):
+        for part in parts:
             if value is None:
-                return None
+                break
+                
+            # Lấy thuộc tính từ object
             value = getattr(value, part, None)
+            
+            # KIỂM TRA NẾU LÀ QUAN HỆ NGƯỢC (ForeignKey ngược hoặc ManyToMany)
+            # Trong Django, các quan hệ này trả về một Manager (có method 'all')
+            if hasattr(value, 'all') and not isinstance(value, models.Model):
+                value = value.first() # Tự động lấy bản ghi đầu tiên
+                
         return value
 
     def fetch_data(self):
diff --git a/app/migrations/0344_legal_rep_relation_organization_bank_account_and_more.py b/app/migrations/0344_legal_rep_relation_organization_bank_account_and_more.py
new file mode 100644
index 00000000..e3b84e24
--- /dev/null
+++ b/app/migrations/0344_legal_rep_relation_organization_bank_account_and_more.py
@@ -0,0 +1,35 @@
+# Generated by Django 5.1.7 on 2026-01-04 16:15
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0343_import_setting_call_api_delete_payment'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='legal_rep',
+            name='relation',
+            field=models.ForeignKey(default=10, on_delete=django.db.models.deletion.PROTECT, related_name='+', to='app.relation'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='organization',
+            name='bank_account',
+            field=models.CharField(max_length=50, null=True),
+        ),
+        migrations.AddField(
+            model_name='organization',
+            name='bank_name',
+            field=models.CharField(max_length=100, null=True),
+        ),
+        migrations.AddField(
+            model_name='organization',
+            name='tax_code',
+            field=models.CharField(max_length=20, null=True),
+        ),
+    ]
diff --git a/app/migrations/0345_alter_co_ownership_transaction.py b/app/migrations/0345_alter_co_ownership_transaction.py
new file mode 100644
index 00000000..891270f8
--- /dev/null
+++ b/app/migrations/0345_alter_co_ownership_transaction.py
@@ -0,0 +1,19 @@
+# Generated by Django 5.1.7 on 2026-01-04 17:34
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0344_legal_rep_relation_organization_bank_account_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='co_ownership',
+            name='transaction',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='co_op', to='app.transaction'),
+        ),
+    ]
diff --git a/app/models.py b/app/models.py
index d5dac4cc..9b9eff95 100644
--- a/app/models.py
+++ b/app/models.py
@@ -1321,8 +1321,11 @@ class Individual(models.Model):
 class Organization(models.Model):
     customer = models.ForeignKey(Customer, null=False, related_name='orgncust', on_delete=models.PROTECT)
     shortname = models.CharField(max_length=50, null=False)
-    established_date = models.DateField() 
-    website = models.CharField(max_length=200, null=True) 
+    established_date = models.DateField()
+    tax_code = models.CharField(max_length=20, null=True)
+    website = models.CharField(max_length=200, null=True)
+    bank_account = models.CharField(max_length=50, null=True)
+    bank_name = models.CharField(max_length=100, null=True)
     type = models.ForeignKey(Company_Type, null=True, related_name='+', on_delete=models.PROTECT)
     create_time = models.DateTimeField(null=True, auto_now_add=True)
     update_time = models.DateTimeField(null=True, auto_now=True)
@@ -1334,6 +1337,7 @@ class Organization(models.Model):
 class Legal_Rep(models.Model):
     organization = models.ForeignKey(Organization, null=False, related_name='orgrep', on_delete=models.PROTECT)
     people = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
+    relation = models.ForeignKey(Relation, null=False, related_name='+', on_delete=models.PROTECT)
     create_time = models.DateTimeField(null=True, auto_now_add=True)
 
     class Meta: 
@@ -1952,7 +1956,7 @@ class Transaction_Discount(models.Model):
 
 class Co_Ownership(models.Model):
     code = models.CharField(max_length=30, null=False, unique=True)
-    transaction = models.ForeignKey(Transaction, null=False, related_name='+', on_delete=models.PROTECT)
+    transaction = models.ForeignKey(Transaction, null=False, related_name='co_op', on_delete=models.PROTECT)
     people = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
     create_time = models.DateTimeField(null=True, auto_now_add=True)
     update_time = models.DateTimeField(null=True, auto_now=True)
diff --git a/static/contract/.~lock.1. Phiếu xác lập thỏa thuận ưu tiên tổ chức.docx# b/static/contract/.~lock.1. Phiếu xác lập thỏa thuận ưu tiên tổ chức.docx#
new file mode 100644
index 00000000..58a88818
--- /dev/null
+++ b/static/contract/.~lock.1. Phiếu xác lập thỏa thuận ưu tiên tổ chức.docx#	
@@ -0,0 +1 @@
+,kumduy,duy-pc,04.01.2026 23:48,file:///home/kumduy/.config/libreoffice/4;
\ No newline at end of file
diff --git a/static/contract/1. Phiếu xác lập thỏa thuận ưu tiên tổ chức.docx b/static/contract/1. Phiếu xác lập thỏa thuận ưu tiên tổ chức.docx
new file mode 100644
index 00000000..4cb82e53
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