I know partial assumable loans were (and still are to some extent) pretty common place in commercial real estate financings, but does anyone know of a residential real estate lender who offers partial assumable loans on individual mortgages? 

@Tyler Speelman pretty common in this area (NJ) but I think depends on location.

I was able to get interested buyers (investors) under contract, but a couple ended up backing out either due to the appraisal contingency, inspection, or lack of funds which are all common reasons.

Plenty of money on the table, but extremely difficult underwriters and less than helpful loan officers in terms of information.

Larger checks often want longer track records.  2014 founding doesn't cut it when these same investors have access to groups with 1998 founded companies, with more deals and similarly consistent returns.Co-investment: Larger checks often do require significant co-investment.  10% of equity is common.  

They are common sense but many still seem to ignore them.

So unlike markets like 30A and the like where prices have remained rather steady despite the returns being extremely poor at current home prices, I think we've probably already hit the bottom (or at least near it) on home values.

Thank you - extremely helpful!!

This has become more common place over the past few years.  

@Ryan Lee, errors like this are fairly common.