What is the ruling regarding the compensatory financial allowance for housing and food that a questioner receives from his company while remaining in the company's accommodation, knowing that the new contract stipulates that obtaining this amount requires moving out and renting outside the company's premises, whereas the old contract allowed married employees to receive compensation while remaining in the company's accommodation?

The duty was to adhere to the agreement with the first manager to leave the company. However, the right in this matter belongs to the company. If the company pardons and permits staying, then there is no harm in benefiting from the compensation while remaining. Your friend should seek forgiveness for his lie regarding the agreement to stay, as forgiveness is not an explicit permission. Truthfulness guides to righteousness and Paradise, and lying guides to wickedness and Hellfire.