In a seller finance scenario and my new posed scenario can I get both parties to agree to let me start paying 3-6 months down the road after the rehab and I start cashflowing?

We've since paid off the HELOC, but realistically it wouldn't be smart to rinse-repeat these days as the borrowing market is obviously MUCH different than it was in early 2022 when we started down this road to begin with.

But that's me.To answer your question, I'm not in the business of recycling dirty money but I think it's pretty well known and established the the proceeds for criminality and the drug trade is invested in all sort of business, especially real estate.

I have a few concerns that I wanted to get people's thoughts on. 1 - Selling a quadraplex 10-20 years down the road seems like it may be challenging as the market for that type of asset is small.

So if the partnership would not be allowed to purchase the entity together and I were to buy it, if we were to force our way down this road, would be to set up a legal agreement beforehand, I would buy the property since a partnership can not, and then the exchange for  ($$ + assigned roles + etc), my partner receives 50% equity?  

At this point I know their income is sufficient, they have indicated they dont have a criminal issue, bankruptcies, and evictions. 4.

Lenders will often still want to see a personal balance sheet.The problem with a SMLLC that is disregarded for federal income tax purposes is that you may decide to bring on partners or flip to an S Corp a few years down the road. 

As other people have mentioned, does it increase risk of being rent controlled down the road?

The airport is willing to make a new lease with us down the road.

Report him to your local licensing boards as well as make police reports, even if not a realtor he will get large fines and potentially criminal charges.