Selling with owner financing help

[Jered Lafuze]

Situation: A friend is selling a house in Wilmington North Carolina. He has an offer but the buyer wants him do owner financing. She offered $25k down and wants him to carry the financing at 4%. Pay $1100 per month for 72 months. Then pay remained of balance with accrued interest. Purchase price being $250000 Any advice at all will help. Thoughts on the offer? Questions he should ask to buyer? Who he should be looking to for closing documents? Insurance? Thank you in advance!