Selling house using contract for deed

[Chris Trupiano]

Currently working with a mentor on buying a house using then selling using contract for deed. He's done over 20 houses this way so I know it will succeed in just unsure if it's the best possibility. The house is listed at $60,000 we'll  most likely get him down to around 55k. I'd then be putting 20% down so 11k. We'd then be selling this house using contract for deed. the house sells for a 20k profit but is financed to the buyer by me with a 15 year loan around 9%. My loan would be the same but only 44k and around 5%. We also require 5k down by the buyer. Is this the best possibility or would making it a straight rental be better. With contract for deed they have to take care of all tax and upkeep so I see that as an upside but if they full pay off the payment to me after 15 years then all my money has been made where as a rental would earn til I sell it.

Thanks for any responses