Rent to own Landord? Good or bad?

[Peter G.]

I have one of my friends that is going to be looking to rent to own in a few years and I was considering being the RTO landlord for that. I have never done a RTO and was wondering what thoughts people here that have done RTO before?

Do you typically pay to fix things like a traditional landlord or does the tenant? What if they dont have the funds to make repairs for example a new roof or a new water heater etc. 

Thanks, 

Peter