I've got stories that would be hard to believe on some of my seller financing deals, contract on a napkin, personal check for a notarized deed, hand shake deals, etc., etc. and a LOT of fun.

Now it sounds like they have gone into ICU and we have to wait to hear from their estate attorney to find out who can sign, POA, or what the process is going to be going forward. 

The biggest issue was getting it out of there. $250.

How did you establish trust with your investors when you were starting out?

If not, they may consider building the ADU and down-sizing into it and renting out the main house.

Would a cash out refi be under commercial terms since the property(s) are under LLC?

He gave out a ton of information for free.

Another option is to split the cost based on the number of occupants in each unit but this also means you'll need to adjust the charges as tenants move in/out, so it requires more work and I wouldn't recommend it.

Have you checked to see what others are doing in the immediate area on VRBO and AirBNB?

The successful wholesalers are the ones that are direct with the seller and have done an analysis on the deal to show it can be a successful investment (always double check with your own)totally agree, I would add the don't act sketchy and present their available homes in a consistent/professional manner to buyers.