Owner Financing but buyer won't give credit history, etc

[Susan H.]

I'm selling my primary residence with owner financing (bond for title). I still have a mortgage on it of $174,000 plus equity line of $18,000. House $250,000, 2% down, 5 3/4% interest. My personal interest rate is 4.125%. THE BUYER HAS REFUSED TO GIVE ME CREDIT OR FINANCIAL HISTORY. Should I tell them to either prequalify or get lost?

Advise please!