<prompt> Human: I bought a condo a few years ago, with my dad acting as my financial lender. He put up the money for the sale and Ive been making monthly mortgage payments to him, via his bank.Ive had difficulty working for some time now, due to some medical problems, and can no longer realistically afford to live in my place. So I think Im going to have to sell the place and move somewhere more affordable.According to my zestimate, the place has appreciated more than 100k.My question is, if we sell the place, do you think its appropriate for me to ask my dad for the full amount of the profit from the sale, split the profit 5050, or some other percentage-based thing?My father has never been interested in real estate as an investment, so on the one hand, the profit would never exist were it not for me. But of course, I recognize his tremendous role and his risk in this endeavor and that it was all his and none of mine.On the other hand, hes pretty well off. In contrast, Im not. And Ive been barely able to work for close to a year and a half. So the extra money would really help me out.Im just not sure which scenario makes the most sense to present to him.  <response>: Legally there is only one correct answer. Who is on the title?Relationship-wise, you need to figure out what makes sense. How much did he put down as a downpayment? If it were my Dad I would make sure he was well compensated with a decent ROI for helping you out. What would have happened if it lost 100K in value??? 