List of apartment communities in U.S. with over 50 units

Hello, I need a list of all apartment communities in the U.S. Requirements: *Community must have 50 units or more *Need name of community, address, phone, etc *Need info about management company (most apartment communities have a management company, i.e. AIMCO, Equity, etc) *Info must be nicely input into EXCEL spreadsheet Note: I need the MOST UP TO DATE info available. Thank you