diff --git a/LawFirm/LawFirmContracts/BusinessLogicContracts/IBlankLogic.cs b/LawFirm/LawFirmContracts/BusinessLogicContracts/IBlankLogic.cs
new file mode 100644
index 0000000..844a7ca
--- /dev/null
+++ b/LawFirm/LawFirmContracts/BusinessLogicContracts/IBlankLogic.cs
@@ -0,0 +1,20 @@
+using LawFirmContracts.BindingModels;
+using LawFirmContracts.SearchModels;
+using LawFirmContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace LawFirmContracts.BusinessLogicContracts
+{
+    public interface IBlankLogic
+    {
+        List<BlankViewModel>? ReadList(BlankSearchModel? model);
+        BlankViewModel? ReadElement(BlankSearchModel model);
+        bool Create(BlankBindingModel model);
+        bool Update(BlankBindingModel model);
+        bool Delete(BlankBindingModel model);
+    }
+}
diff --git a/LawFirm/LawFirmContracts/BusinessLogicContracts/IDocumentLogic.cs b/LawFirm/LawFirmContracts/BusinessLogicContracts/IDocumentLogic.cs
new file mode 100644
index 0000000..9f34856
--- /dev/null
+++ b/LawFirm/LawFirmContracts/BusinessLogicContracts/IDocumentLogic.cs
@@ -0,0 +1,20 @@
+using LawFirmContracts.BindingModels;
+using LawFirmContracts.SearchModels;
+using LawFirmContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace LawFirmContracts.BusinessLogicContracts
+{
+    public interface IDocumentLogic
+    {
+        List<DocumentViewModel>? ReadList(DocumentSearchModel? model);
+        DocumentViewModel? ReadElement(DocumentSearchModel model);
+        bool Create(DocumentBindingModel model);
+        bool Update(DocumentBindingModel model);
+        bool Delete(DocumentBindingModel model);
+    }
+}
diff --git a/LawFirm/LawFirmContracts/BusinessLogicContracts/IOrderLogic.cs b/LawFirm/LawFirmContracts/BusinessLogicContracts/IOrderLogic.cs
new file mode 100644
index 0000000..557d867
--- /dev/null
+++ b/LawFirm/LawFirmContracts/BusinessLogicContracts/IOrderLogic.cs
@@ -0,0 +1,20 @@
+using LawFirmContracts.BindingModels;
+using LawFirmContracts.SearchModels;
+using LawFirmContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace LawFirmContracts.BusinessLogicContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}
diff --git a/LawFirm/LawFirmContracts/ViewModels/OrderViewModel.cs b/LawFirm/LawFirmContracts/ViewModels/OrderViewModel.cs
index 5aebf70..be30e43 100644
--- a/LawFirm/LawFirmContracts/ViewModels/OrderViewModel.cs
+++ b/LawFirm/LawFirmContracts/ViewModels/OrderViewModel.cs
@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 
 namespace LawFirmContracts.ViewModels
 {
-    internal class OrderViewModel : IOrderModel
+    public class OrderViewModel : IOrderModel
     {
         public int DocumentId { get; set; }