The spouses own and operate the trade or business as co-owners (and not in the name of a state law entity such as an LLC or LLP),.."

You definitely want to use a thorough screening method like rentprep.com that gets their income, credit, background check, and call at least 3 references (make sure to verify them by address/job and then their name).  

It might take a large financial institution with capital for “brainpower” and marketing, and financial and reputation strength to design as well as create a trading market for this type of security. 

If youre saying condos are trading at $220 a square foot....Id be planning on a value of $110 per square foot on a co-op.

I hope to find a single-family home with at least 4 bedrooms, use the BRRR method to turn it into a short-term rental property.

If you wanted to do a 1031 exchange down the road to use that equity and trade up then that'd be a good idea.The homes I’m looking at buying are in the 330,000-350,000 range.

I use their payment method and they deposit into my account and it's very simple.

He uses poorly thought through methods, I've listened to his "methods",  Thus, he has the high amount of  Due On Sale called in a short period of time. 

@Chris Morris have ALWAYS seen bad "deals" from rookie wholesalers that really don't understand what they are doing to provide value to the industry.It's getting worse because the real estate market has recovered from the 2010 Crash, yet many are still using tactics & methods developed during this time.Everyone in the industry needs to go back and look at what was being done BEFORE 2010 and start using those methods, updating them with current technology.

You don't have a recourse because you took the liability on yourself knowing that is not his trade.  10 days later you have a water leak in the SAME bathroom causing the ceiling downstair to leak AGAIN.