diff --git a/LawCompany/LawCompanyBusinessLogic/BusinessLogics/HearingLogic.cs b/LawCompany/LawCompanyBusinessLogic/BusinessLogics/HearingLogic.cs
index cb2fb95..3ec0394 100644
--- a/LawCompany/LawCompanyBusinessLogic/BusinessLogics/HearingLogic.cs
+++ b/LawCompany/LawCompanyBusinessLogic/BusinessLogics/HearingLogic.cs
@@ -95,6 +95,10 @@ namespace LawCompanyBusinessLogic.BusinessLogics
 			{
 				return false;
 			}
+			if (element.HearingLawyers.ContainsKey(lawyer.Id))
+			{
+				return false;
+			}
 			element.HearingLawyers[lawyer.Id] = lawyer;
 
 			_hearingStorage.Update(new()
@@ -118,6 +122,10 @@ namespace LawCompanyBusinessLogic.BusinessLogics
 			{
 				return;
 			}
+			if (string.IsNullOrEmpty(model.Judge))
+			{
+				throw new ArgumentNullException("Не указан суд", nameof(model.Judge));
+			}
 			if (string.IsNullOrEmpty((model.HearingDate).ToString()))
 			{
 				throw new ArgumentNullException("Не поставлено время", nameof(model.HearingDate));
diff --git a/LawCompany/LawCompanyBusinessLogic/BusinessLogics/LawyerLogic.cs b/LawCompany/LawCompanyBusinessLogic/BusinessLogics/LawyerLogic.cs
index d062877..45a71af 100644
--- a/LawCompany/LawCompanyBusinessLogic/BusinessLogics/LawyerLogic.cs
+++ b/LawCompany/LawCompanyBusinessLogic/BusinessLogics/LawyerLogic.cs
@@ -142,7 +142,6 @@ namespace LawCompanyBusinessLogic.BusinessLogics
 				FIO = model.FIO,
 				Phone = model.Phone,
 				Email = model.Email,
-				GuarantorId = model.GuarantorId,
 
 			});
 			if (element != null && element.Id != model.Id)
diff --git a/LawCompany/LawCompanyDatabaseImplement/Implements/HearingStorage.cs b/LawCompany/LawCompanyDatabaseImplement/Implements/HearingStorage.cs
index 8d70d34..10a3c8d 100644
--- a/LawCompany/LawCompanyDatabaseImplement/Implements/HearingStorage.cs
+++ b/LawCompany/LawCompanyDatabaseImplement/Implements/HearingStorage.cs
@@ -26,7 +26,7 @@ namespace LawCompanyDatabaseImplement.Implements
             {
                 return new();
             }
-            if (!model.GuarantorId.HasValue && model.DateFrom.HasValue && model.DateTo.HasValue)
+            if (model.GuarantorId.HasValue && model.DateFrom.HasValue && model.DateTo.HasValue)
             {
                 using var context = new LawCompanyDatabase();
                 return context.Hearings
@@ -37,7 +37,7 @@ namespace LawCompanyDatabaseImplement.Implements
                     .Select(x => x.GetViewModel)
                     .ToList();
             }
-            if (!model.GuarantorId.HasValue)
+			else if (model.GuarantorId.HasValue)
             {
                 using var context = new LawCompanyDatabase();
                 return context.Hearings