Getting Back Unit Occupied by Ex-Employee

Q As the owner of a tax credit site, I recently terminated the employment of a manager who was living at the site. Even though she has been terminated, she's still living on-site. The unit no longer qualifies for tax credits, because it is being occupied by someone who is neither an employee nor a low-income resident, so I am seeking her eviction. Meanwhile, I have hired a new manager and would like to move him into the site manager's unit as soon as possible. However, it is not clear how long it will take to evict the ex-manager.