How can I protect the seller in a land contract?

[Garrett Jennings]

Hello everyone! I live in Wisconsin, and going to purchase my first rental using a land contract with the seller. I am younger, so he is wanting one of my parent to co-sign on the land contract. What I don't like about that, is that it will effect their DTI ratio, correct? Are there any other suggestions on how I could give the seller some additional security in this land contract, and not worry about having to go through the foreclosure process. Thank you!!