diff --git a/CarCenter/CarCenterBusinessLogic/BusinessLogics/EmployeeLogic.cs b/CarCenter/CarCenterBusinessLogic/BusinessLogics/EmployeeLogic.cs
index 6ab3fa6..b37c26f 100644
--- a/CarCenter/CarCenterBusinessLogic/BusinessLogics/EmployeeLogic.cs
+++ b/CarCenter/CarCenterBusinessLogic/BusinessLogics/EmployeeLogic.cs
@@ -19,10 +19,9 @@ namespace CarCenterBusinessLogic.BusinessLogics
             _logger = logger;
             _employeeStorage = EmployeeStorage;
         }
-        public bool Create(EmployeeBindingModel model)
+        public bool Create(EmployeeBindingModel? model)
         {
             CheckModel(model);
-            model.EmployeeSales = new();
 
             var result = _employeeStorage.Insert(model);
 
@@ -35,7 +34,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        public bool Delete(EmployeeBindingModel model)
+        public bool Delete(EmployeeBindingModel? model)
         {
             CheckModel(model, false);
 
@@ -52,7 +51,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        public EmployeeViewModel? ReadElement(EmployeeSearchModel model)
+        public EmployeeViewModel? ReadElement(EmployeeSearchModel? model)
         {
             if (model == null)
             {
@@ -91,7 +90,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return list;
         }
 
-        public bool Update(EmployeeBindingModel model)
+        public bool Update(EmployeeBindingModel? model)
         {
             CheckModel(model);
 
@@ -104,7 +103,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        private void CheckModel(EmployeeBindingModel model, bool withParams = true)
+        private void CheckModel(EmployeeBindingModel? model, bool withParams = true)
         {
             if (model == null)
             {
@@ -121,6 +120,17 @@ namespace CarCenterBusinessLogic.BusinessLogics
                 throw new ArgumentNullException("Нет ФИО сотрудника", nameof(model.EmployeeFIO));
             }
 
+            if (string.IsNullOrEmpty(model.EmployeePost))
+            {
+                throw new ArgumentNullException("Нет должности сотрудника", nameof(model.EmployeePost));
+            }
+
+            if (model.EmployeeSalary < 0)
+            {
+                throw new ArgumentNullException("Зарплата не может быть меньше 0", nameof(model.EmployeeSalary));
+            }
+
+
             _logger.LogInformation("Employee. EmployeeFIO:{EmployeeFIO}.EmployeePost:{ EmployeePost}. Id: { Id}", model.EmployeeFIO, model.EmployeePost, model.Id);
         }
     }
diff --git a/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs b/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
index 2715e29..9084574 100644
--- a/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
+++ b/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
@@ -12,19 +12,16 @@ namespace CarCenterBusinessLogic.BusinessLogics
     {
         private readonly ILogger _logger;
         private readonly IPreSaleWorkStorage _PreSaleWorkStorage;
-        private readonly IManagerLogic _managerLogic;
 
-        public PreSaleWorkLogic(ILogger<PreSaleWorkLogic> logger, IPreSaleWorkStorage PreSaleWorkStorage, IManagerLogic ManagerLogic)
+        public PreSaleWorkLogic(ILogger<PreSaleWorkLogic> logger, IPreSaleWorkStorage PreSaleWorkStorage)
         {
             _logger = logger;
             _PreSaleWorkStorage = PreSaleWorkStorage;
-            _managerLogic = ManagerLogic;
         }
 
         public bool Create(PreSaleWorkBindingModel model)
         {
             CheckModel(model);
-            model.PreSaleWorkSales = new();
 
             var result = _PreSaleWorkStorage.Insert(model);
 
@@ -54,7 +51,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        public PreSaleWorkViewModel? ReadElement(PreSaleWorkSearchModel model)
+        public PreSaleWorkViewModel? ReadElement(PreSaleWorkSearchModel? model)
         {
             if (model == null)
             {
@@ -93,7 +90,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return list;
         }
 
-        public bool Update(PreSaleWorkBindingModel model)
+        public bool Update(PreSaleWorkBindingModel? model)
         {
             CheckModel(model);
 
@@ -106,7 +103,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        private void CheckModel(PreSaleWorkBindingModel model, bool withParams = true)
+        private void CheckModel(PreSaleWorkBindingModel? model, bool withParams = true)
         {
             if (model == null)
             {
diff --git a/CarCenter/CarCenterBusinessLogic/BusinessLogics/SaleLogic.cs b/CarCenter/CarCenterBusinessLogic/BusinessLogics/SaleLogic.cs
index b89612c..68de098 100644
--- a/CarCenter/CarCenterBusinessLogic/BusinessLogics/SaleLogic.cs
+++ b/CarCenter/CarCenterBusinessLogic/BusinessLogics/SaleLogic.cs
@@ -11,13 +11,11 @@ namespace CarCenterBusinessLogic.BusinessLogics
     {
         private readonly ILogger _logger;
         private readonly ISaleStorage _SaleStorage;
-        private readonly IManagerLogic _managerLogic;
 
-        public SaleLogic(ILogger<SaleLogic> logger, ISaleStorage SaleStorage, IManagerLogic ManagerLogic)
+        public SaleLogic(ILogger<SaleLogic> logger, ISaleStorage SaleStorage)
         {
             _logger = logger;
             _SaleStorage = SaleStorage;
-            _managerLogic = ManagerLogic;
         }
 
         public bool Create(SaleBindingModel model)
@@ -59,7 +57,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
                 throw new ArgumentNullException(nameof(model));
             }
 
-            _logger.LogInformation("ReadElement. SaleFIO:{SaleFIO}.Id:{Id}", model.SaleDate, model.Id);
+            _logger.LogInformation("ReadElement. SaleName:{SaleName}.Id:{Id}", model.SaleName, model.Id);
 
             var element = _SaleStorage.GetElement(model);
 
@@ -76,7 +74,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
 
         public List<SaleViewModel>? ReadList(SaleSearchModel? model)
         {
-            _logger.LogInformation("ReadList. SaleFIO:{SaleFIO}.Id:{ Id}", model?.SaleDate, model?.Id);
+            _logger.LogInformation("ReadList. SaleName:{SaleName}.Id:{ Id}", model?.SaleName, model?.Id);
 
             var list = model == null ? _SaleStorage.GetFullList() : _SaleStorage.GetFilteredList(model);