<prompt> Human: Just going to give you the info - interpret as necessary:- father-in-law owns a successful business, owns a house worth just under 1 mil- he recently bought a second house that he planned to expand and move into, but the quote for expandingremodeling was almost as much as just tearing it down and building from scratch so hes waiting a year or so to save enough to just tear it down- in the meantime, another family will live in house 2 and rent it out- FIL wants to put my and my wifes name on the lease im not a homeowner, but what lease? does he mean mortgage? for house 1 but still hasnt explained to me why? I just heard this through my wife who was told by her mother.My question to you all is...why would he want to do this? And is it sensible for me to agree to it? Hes a pretty financiallybusiness savvy guy, so I dont think hes trying to make a stupid move or anything, just curious about why he would want to do so..Thanks!!  <response>: You become liable for the money if you cosign.Dont do it. Dont. Do not.Abort.Resist any guilt trips. 