At the team color selection screen, type one of the following codes and press [Enter]. If you entered the code correctly, you will hear a sound. Enter any other desired codes, then start the game. Press C during the game to toggle the selected cheat(s).
Result
Cheat Code
Buy any gangster weapon weapons563
Buy workers at any time worker928
Buy any estate without limits estates216
Borrow any amount of money from bank loans458
Select any tenant at any time tenants872
Pick up enemy beacons pickup036
Faster network game speed364