Your best bet is to do a standard 14 day inspection contingency. 14 days from when the seller accepts your offer.

And if so, to who's standard?

C Corp, files an actual separate tax return.Also, if you make a LLC lenders won't be able to give you a standard conforming residential loan which have the best interest rates. 

please note, if you are looking up info on REI Nation, know that up until the past few weeks, it was known as Memphis Investthey didn't change their name because of any issues, they are now in many more cities than just MemphisMemphis Invest has long been the Gold Standard of Turnkey companies

However, with your PRIMARY home, standard loans just need 3%-5%. 

I own one home I am currently house hacking via a standard owner occupied mortgage, but am trying to buy another for either renting by the room or to an entire family.

If you find an Architect be sure they know how to design to modular standards.

That variation seems pretty standard.

If they meet minimum standards, they are in.

If your area offers lots of standard three bedroom homes, go the single family route.