diff --git a/CaseAccounting/CaseAccounting.sln b/CaseAccounting/CaseAccounting.sln
new file mode 100644
index 0000000..a0e00aa
--- /dev/null
+++ b/CaseAccounting/CaseAccounting.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.33424.131
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CaseAccountingDataModels", "CaseAccountingDataModels\CaseAccountingDataModels.csproj", "{CAA81DB0-6CCA-4CBE-ABE2-94CDB190E05F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CAA81DB0-6CCA-4CBE-ABE2-94CDB190E05F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CAA81DB0-6CCA-4CBE-ABE2-94CDB190E05F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CAA81DB0-6CCA-4CBE-ABE2-94CDB190E05F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CAA81DB0-6CCA-4CBE-ABE2-94CDB190E05F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A31BAB4B-6B09-4D12-B3FB-F4CE5FEF034C}
+	EndGlobalSection
+EndGlobal
diff --git a/CaseAccounting/CaseAccountingContracts/CaseAccountingContracts.csproj b/CaseAccounting/CaseAccountingContracts/CaseAccountingContracts.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/CaseAccounting/CaseAccountingContracts/CaseAccountingContracts.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/CaseAccounting/CaseAccountingDataBaseImplement/CaseAccountingDataBaseImplement.csproj b/CaseAccounting/CaseAccountingDataBaseImplement/CaseAccountingDataBaseImplement.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/CaseAccounting/CaseAccountingDataBaseImplement/CaseAccountingDataBaseImplement.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/CaseAccounting/CaseAccountingDataModels/CaseAccountingDataModels.csproj b/CaseAccounting/CaseAccountingDataModels/CaseAccountingDataModels.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/CaseAccounting/CaseAccountingDataModels/CaseAccountingDataModels.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>