@Adam JohnsonThere is not a one table list all as laws regarding this are very interpretive and honestly no one in their right mind would publish a list for liability purposesYour best bet is to speak to an attorney in that state.

The table below might help.

Rates are still extremely low, and the real shortage of housing is at the entry level market where there are still grants and legislation on the table to give tax credits to first time home buyers.Rates going up from 2.75 to 3 is a significant jump; but at least most of my residential clients still look at it as they want to move quick before they go even higher.

You already will know the cost of the rehab ;)Being a GC(General Contractor) brings a ton of value to the table for investors and you are able to employ others in the community. 

So what are these acquaintances bringing to the table other than money?

However, at the closing table, when I received the documents, I was surprised to find that the loan contains a demand feature that allows the lender to call the note due for any reason (not just in an event of default). 

If Venmoe was frozen you could have used Zelle, PayPal, wrote a check or got cash out of your account to pay the other half of the rent you owed.From the Landlords point of view the repairs could be taken out of the back rent you owe.Many small landlords depend on the tenants paying rent on time to pay their bills and put food on the table.

Bigger Pockets family,I have a 20 unit deal on the table.

Typically sellers don't care who is buying as long as someone shows up to a closing table with the money promised.Legally, the LLC will likely need to assign the contract to you, and then you close as if you were to assign the contract to any other buyer.

Perhaps take the tax hit on one property sale and take that money off the table to live off.