Owner Financing

I've never seen an index that would address this. Owners charge whatever they wish to charge for interest, depending on their finances, and (we hope) taking into account the risk that they're taking.

Certainly, I'd expect interest rates to be higher than those found on conventional or fha loans, although you'd not be likely to find private lenders charging points in these situations.

The bottom line is, though, that there's limited data for this segment of the population.