@Bryan L.
I would not buy anything on a Land-Contract (aka Contract for Deed) for the following reasons:
The seller may further encumber the property by obtaining more mortgage debt. The seller may get judgment liens recorded against the property post your LC - ex. hospital, credit card, you name it. This could end up with the property being upside down and the loss of your equity (I am assuming that you want the property for it's equity).
Along the same lines, what prevents the seller from selling the house out from under you during your LC? You've recorded nothing in Land Records giving Notice of any Beneficial Interest in the property. A bone fide purchaser for value w/o notice takes free of any claim by you. Do you require proof the RE Taxes are being paid?
Does your contract state that the seller will maintain insurance and that you are an additional insured? Will this trip the DOS? Is it really a rental or is it a sale? If you have an equitable interest in the property, can you be sued for negligence (someone injured on the property)? If so, will your insurance cover you or claim you have no insurable interest. I sure wouldn't put myself in this situation.
I've always thought the whole "subject to" arena was the place of late night infomercials and fraught with landmines. I was totally onboard with the FHA and VA assumptions of yesteryear - but never these Land Contracts.
You state that little money is at risk. This likely (hopefully) will change due to appreciation. I would secure my interest by recording a Deed of Trust. In other words - do your Land Contract and record a DOT/Mortgage to protect your equity and be properly an additional insured. (just thinking out loud on how best to do this)