If you are at the point at which you now need to move out of the home office / basement / garage: Congratulations. Now, take a deep breath, and consider the next step: renting commercial space.
Here are some timely tips, several of the more significant of which are the fact that clauses in a lease (or any agreement) that supposedly are set in stone can, and should, be negotiated; and it behooves you to have that negotiation conducted by a quality commercial agent.
Good luck.