Buying a rental house

[Richard Rabe]

Hi everyone
Ok need some advice I have a chance to buy a property from my father Its his house the place on the inside is in pretty poor shape and he really wont be needing it anymore hes 83. I dont want to steel it from him but I cant give him fair market value cause of all the work it needs. How would i figure out what would be a good price to give him for it.And also how would i figure out if i can make money on it by renting it out. And where could I find out how much I could get for rent. Please help.