Homeowner who ive done a furnace checkup for in the past, is getting transferred 2000 miles away within the continental U.S. and has to leave immediately. Furnace has bad heat exchanger now and new owner wants the Seller to install a new furnace before the move-in date. Seller wants me to do the job and to 'just bill him when done ' (at his new location 2000 miles away). Getting a red-flag, i said to him :' I would need full payment in advance im afraid, or, be cut a check at Closing with me stopping by to pick it up' (on the Closing date and location). He didnt like that too much.

Was there a better way of handling this thing ??? I dont trust the guy 100 percent and dont want to get cheated.