The Godfather Cheats

"Death To The Traitor" mission: Hidden money
After placing the bomb in the upstairs of the bar, a single enemy will suddenly open up the previously locked door at the top of the stairs. Quickly run into the hallway he reveals to collect a massive stash of money bags. Do this quickly by sprinting, as you will not have much time to run downstairs and leave before the bomb explodes. Do not bother trying to open the second door in the hallway, because it is locked.

"The Don Is Dead" mission
Break the windows in the barber shop before start the mission. This will allow for easy shooting once the Don is shot. The recommended gun for this and any other close range shooting mission is the magnum.

Extorting businesses
When you are having trouble extorting business owners, try destroying some of their property and/or hold a gun to their face. For example, when you are trying to take over Good Eats in Brooklyn. you can hold the gun to the man's face then reholster the gun and extort. He will refuse. Simply draw your gun again, lock on, and hold it. Keep doing this until he caves in. Do not forget to reholster your gun to avoid accidentally shooting him. In another example, when you are trying to extort money from the hotel owner in Brooklyn, hold a gun to him twice, break the downstairs cupboard, then finally blow his safe before you beat him into submission. Always buy available rackets first. Take a trip around to either buy another racket or go around the block. Do not attack until you visit again, and instead of enemy soldiers you will find all your soldiers. By doing this you do not have to fight a bunch of enemies and get your vendetta up.