Suggesting to them buying their house for a wholesale range offer or lower dependent on the extent of the rehab, then having a contract in place that gives them a percentage of the profit to help get them back on their feet, paying off debts etc.

Work in a balance reduction if you pay it off early?

This route requires more attention as you will need to ensure that you are finding good deals wether they are on the market or off market.

Do they keep the loans or sell them off? 

Than there are off-site issues such as availability and capacity of utilities and the capacity of access roads, and on-site issues such as depth of bedrock (is it diggable or will you have to blast?)

Someone with $10M in the bank in cash just needs to put a lot of money to work and time value and tax write off is more interesting to them than a hungry investor in their 20s that has never found a deal.Honestly, books are great, but they are about as "boiler plate" as you can get as I'm sure you're discovering.

If the loan is being paid the seller/previous owner has no reason to want off of the loan.

I was dizzy and off-balance for weeks following.

If it is only one flip for now, I suggest you find a CPA just to advise you on State filing requirements, ensure you are claiming all write-offs and issuing 1099s, etc.

I’ve built relationships with brokers who specialize in Harlem, and one of them brought this off-market deal to my attention.