Cherrie is correct. You'll only be able to include the income so long as the units are currently rented and the leases are good for at least a full 12 months. If remaining time on current leases are less, a letter of intent to stay and other cooresponding documentation may be required from current renters. Good luck!
If the units are currently rented out, you will be able to use the rent as income when purchasing the building. If the building is vacant, lenders will not allow you to use project rent.
I hope this helps.
Good Luck with you purchase!
Bridgeview Bank Mortgage