This makes it a little difficult to get a VA loan with multifamily.

Taxes are calculated on the annual sale installment gain. 

Will they allow a loan assumption as the new deed owner? 

I want to purchase a condo with the loan 100% in my name, with the intention of completely remodeling the unit for potential rental opportunity. 

we have until spring of 2025 until our balloon loan either has to be refinanced or paid off (we got this loan because we intended to build, of course) and now i feel like it's a ticking time bomb.we conducted "clean and satisfactory" (no issues whatsoever to build) soil and foundation tests and provided those to every buyer. it seemed (not quite sure here) like they backed out once they reviewed the tests - yet there is nothing negative in them. we will not be providing these tests moving forward (as we had to do them ourselves and feel that each buyer should do their due diligence moving forward!)

If it is a SFR single family, Condo, or Townhome you can use a Vacation home type of loan and only have to put 10% down. 

My question is, when buying a home, do most here use big banks for loans?

It is also common in commercial loans. 

So far I boarded up the house and installed cameras.

Without looking at comps, I wouldn't waste your time finding and installing that paneling.