Joe depending on the laws of your state, You and I are in pa. You are from Philadelphia they have tenant-friendly laws, but you would go by the state law. I have them sign an agreement to hold units off the market for their deposit. If they sign a lease with us, per our state law we can consider it a breach of contract and they are responsible for the length of the lease or up to the time we find another tenant. If we locate another tenant, they would be responsible for the time it took to locate a new tenant, plus any expenses.
I've owned Multi-family complexes for over 30 years, since 1996 and if this happens we don't give back the deposit and rent unless we can locate some else and deduct all expenses and time.
It's a business and you need to treat it as one. If they sign a contract with you and you turned away others from renting this unit. You are losing time and money, your time is also worth something.
Good luck
John Liberati, President
Liberati Capital Group