The House Has Gone Bust!

The House Has Gone Bust! is a side quest in Fallout: New Vegas.

Quick walkthoguh

 * 1) Kill Mr. House.

Detailed walkabout
This quest appears after killing or disconnecting Mr. House in the control room in response to any number of factions wishing to get Mr. House out of the New Vegas picture. Before this quest is completed (or failed) you will not be able to take the elevator to another floor from the penthouse. This is due to Victor being hostile towards you. After killing Mr House (and thus all automated Securitrons in the Lucky 38), control of the elevators will be given to the player character.