Late Checkout

Ray still does not have his fortune in the stolen diamonds. He has one last job for Niko: kill the Jewish diamond dealer Isaac Roth and his men in their Algonquin penthouse.

Go to the Majestic Hotel in Lower Middle Park. In the lobby, you will find a set of elevators. Call them and you will be brought to the 30th floor. Isaac and the other two targets are on different levels of the penthouse. Fight your way through Isaac's muscle. The first target will be in the kitchen. Go up a flight of stairs to find Isaac himself in his bedroom (he'll be sending his girl out; you can kill her or let her go). The third target and some more hitmen will be on the roof. Finish them off and escape the hotel as you will have a two star wanted level. There will still be Jewish mobsters trying to prevent your escape; one way is to flee to the roof and find the window elevator.

Tip:

Right after killing Roth and his girl, there is a staircase that leads to the roof. If you slowly walk up to the roof and keep an eye on the targets on the right, you can see them gathered around a petrol tank. Take advantage of this incredible tactical disadvantage of your enemies and shoot the tank. Enjoy the cutscene of flaming mobsters falling off the building.

An easier way to complete this mission is to leave the front entrance. Instead of using the main elevator, go around the back of the hotel into the alley and you will find a window cleaning platform that will take you all the way to the roof of the hotel. You may then kill the diamond dealers from the roof down, allowing you to avoid the hallways of guards on your way to the penthouse. Take the same cleaning platform back down to street level after killing the 3 targets (there will be 3 additional guards on the roof as you leave the penthouse) and escape the area to complete the mission.