C# School App: Audit & Bug-Fixing

I have a small C# Windows Forms school management app (SQL Server + Entity Framework). I built it for fun and want someone to look through the code, find bugs, and fix them.

What I need
- Audit the project and tell me what is broken or unsafe
- Fix the real bugs (login, permissions, exam marks, crashes, app not closing properly, passwords stored in plain text, etc.)
- Don’t rewrite the whole app and don’t delete working features

You should know C# WinForms and SQL Server. Crystal Reports is a plus, not required.

Please send
- A couple of similar projects you’ve done
- Your price and how long it will take
- A short note on how you’d start (audit first, then fixes)

Message me if you’re interested.