Transaction manager

this is a real estate transaction manager project. I need 3 levels of management: 1. Admin - Can create new office and assign new broker and/or agents 2. Broker - Can add new agent under him 3. Agent All levels have ability to change personal [login to view URL] levels can create new transactions and upload docs to server. 1. Agent can view their own transactions and download docs. 2. Broker can view his and assigned agents contracts and download docs. 3. Can see ALL transactions for Brokers and Agents and download docs. Each transaction will have a link to open property detail page and view property details and uploaded doc list. This site has to be secure - you must be logged in to view docs and only docs/ permissions that your level allows you access to. No time wasters or learn as you go. This is a simple enough project. Someone may even have a similar one in their portfolio ready to go. Be ready to show examples with admin etc.