diff --git a/Marco.Pms.Services/Controllers/DocumentController.cs b/Marco.Pms.Services/Controllers/DocumentController.cs
index adb872e..85e4e3b 100644
--- a/Marco.Pms.Services/Controllers/DocumentController.cs
+++ b/Marco.Pms.Services/Controllers/DocumentController.cs
@@ -536,17 +536,90 @@ namespace Marco.Pms.Services.Controllers
             }
         }
 
+        /// <summary>
+        /// Verifies a document attachment by its ID. Checks permissions, logs the operation, and updates verification fields.
+        /// </summary>
+        /// <param name="id">Document Attachment ID (Guid)</param>
+        /// <param name="isVerify">Flag to verify or unverify the document (default: true)</param>
+
         [HttpPost("verify/{id}")]
-        public async Task<IActionResult> VerifyDocumentAsync(Guid id)
+        public async Task<IActionResult> VerifyDocumentAsync(Guid id, [FromQuery] bool isVerify = true)
         {
+            // Begin: Create DbContext and DI scope
             await using var dbContext = await _dbContextFactory.CreateDbContextAsync();
             using var scope = _serviceScope.CreateScope();
 
-            var loggedInEmployee = await _userHelper.GetCurrentEmployeeAsync();
+            try
+            {
+                // Get current logged-in employee for authentication/auditing
+                var loggedInEmployee = await _userHelper.GetCurrentEmployeeAsync();
+                var tenantId = loggedInEmployee.TenantId;
 
-            return Ok(ApiResponse<object>.SuccessResponse(new { }, "Document is verified successfully", 200));
+                _logger.LogInfo("Attempting to verify document. EmployeeId: {EmployeeId}, DocumentId: {DocumentId}, IsVerify: {IsVerify}",
+                                        loggedInEmployee.Id, id, isVerify);
+
+                // Fetch active/current document by Id, TenantId, and relevant conditions
+                var documentAttachment = await dbContext.DocumentAttachments
+                    .FirstOrDefaultAsync(da => da.Id == id && da.IsActive && da.IsCurrentVersion && da.TenantId == tenantId);
+
+                if (documentAttachment == null)
+                {
+                    _logger.LogWarning("Document attachment not found. Requested Id: {DocumentId}, TenantId: {TenantId}", id, tenantId);
+                    return NotFound(ApiResponse<object>.ErrorResponse("Attachment not found", "Attachment not found in database", 404));
+                }
+
+                // Permission service: check if employee is authorized to verify documents
+                var permissionService = scope.ServiceProvider.GetRequiredService<PermissionServices>();
+                var hasVerifyPermission = await permissionService.HasPermission(PermissionsMaster.VerifyDocument, loggedInEmployee.Id);
+
+                if (!hasVerifyPermission)
+                {
+                    _logger.LogWarning("Access denied for document verification. EmployeeId: {EmployeeId}, DocumentId: {DocumentId}", loggedInEmployee.Id, id);
+                    return StatusCode(403, ApiResponse<object>.ErrorResponse("Access Denied.", "You do not have permission to verify this document", 403));
+                }
+
+                // Log existing entity state before update (for audit trail)
+                var updateLogHelper = scope.ServiceProvider.GetRequiredService<UtilityMongoDBHelper>();
+                var existingEntityBson = updateLogHelper.EntityToBsonDocument(documentAttachment);
+
+                // Update document verification status and audit fields
+                documentAttachment.IsVerified = isVerify;
+                documentAttachment.VerifiedAt = DateTime.UtcNow;
+                documentAttachment.VerifiedById = loggedInEmployee.Id;
+
+                // Commit changes
+                await dbContext.SaveChangesAsync();
+
+                // Log the update to MongoDB for change tracking
+                await updateLogHelper.PushToUpdateLogsAsync(new UpdateLogsObject
+                {
+                    EntityId = documentAttachment.Id.ToString(),
+                    UpdatedById = loggedInEmployee.Id.ToString(),
+                    OldObject = existingEntityBson,
+                    UpdatedAt = DateTime.UtcNow
+                }, Collection);
+
+                var versionMapping = await dbContext.AttachmentVersionMappings.FirstOrDefaultAsync(av => av.ChildAttachmentId == documentAttachment.Id);
+
+                var response = _mapper.Map<DocumentListVM>(documentAttachment);
+                if (versionMapping != null)
+                {
+                    response.ParentAttachmentId = versionMapping.ParentAttachmentId;
+                    response.Version = versionMapping.Version;
+                }
+
+                _logger.LogInfo("Document verified successfully. DocumentId: {DocumentId}, VerifiedBy: {EmployeeId}", documentAttachment.Id, loggedInEmployee.Id);
+                return Ok(ApiResponse<object>.SuccessResponse(new { }, "Document is verified successfully", 200));
+            }
+            catch (Exception ex)
+            {
+                // Handle unexpected errors gracefully
+                _logger.LogError(ex, "Error occurred during document verification. DocumentId: {DocumentId}", id);
+                return StatusCode(500, ApiResponse<object>.ErrorResponse("Server Error", "An error occurred while verifying the document", 500));
+            }
         }
 
+
         [HttpPut("edit/{id}")]
         public async Task<IActionResult> UpdateDocumentAsync(Guid id, [FromBody] UpdateDocumentAttachmentDto model)
         {
@@ -568,7 +641,7 @@ namespace Marco.Pms.Services.Controllers
                 var oldAttachment = await dbContext.DocumentAttachments
                     .Include(da => da.DocumentType)
                         .ThenInclude(dt => dt!.DocumentCategory)
-                    .FirstOrDefaultAsync(da => da.Id == id && da.IsCurrentVersion && da.TenantId == tenantId);
+                    .FirstOrDefaultAsync(da => da.Id == id && da.IsActive && da.IsCurrentVersion && da.TenantId == tenantId);
 
                 if (oldAttachment == null)
                 {