Wisconsin Legal Blank  Before the next rental period meaning i would request one sent by current seller via amendment 

If they're in the same state, that will make your legal team more streamlined, but otherwise, you have to form all new vendor teams when assets are scattered across multiple MSAs & states.

Quote from @Sam Epperson: let's say I come to an agreement with the seller for them to finance some of the deal. let's also pretend the seller owns it with no debt, and we agree to 5% down, 5% rate, and 10 year balloon. how are we drafting this legal document?

Is most areas, this will determine who (Marshalls Office or Sheriffs Office) will handle the situation when it comes to the eviction.Some squatters know their rights and how to finesse the legal system so be ready for that.

Most are fine with that, but a few will have problems with it and claim there are legal issues, etc..

MA is a very tenant-friendly state so I try not avoid the legal route, even if it costs a bit.

So that $100k+ ED is coming from your pocket, before it can be reimbursed by investors.Legal Fees: you can't raise money without legal contracts setup.  

For a month-to-month lease that isn't under any lease agreement, what could the seller legally do to get the home sold off-market?

You can also explore FHA with 3.5% down as well with 1.75% Upfront fee + anything with more than 3-4 units, there will be a SS rule (Self-sufficient test) to pass per FHA guideline.If it is a legal multifamily unit, you can also use those vacant units as your rental income up to 75% of gross market rent.

I can legally deny them or other business.