You can likely skip the large regionals and national banks.

Often small local banks have easier rules to deal with than large national or regional banks.

Be aware, however, that when refinancing unseasoned property most institutional lenders will limit your LTV to a percentage of COST, not market value, so trying to refi off of the higher market value will be difficult to do.

Some of the bigger ones are Memphis Invest/REI Nation, Mid South Home Buyers and Rent to Retirement.

But a lot of them already have institutional debt on them. 

Now if someone could explain to me how nationalizing all the debt leaves us with a free market economy?

A shift toward seller-financed vs. institutional?

Landlords, which financial institution do you use to refinance your performing rental properties?

This is still what the majority of the nation feels.

It has now been adopted by most national banks and credit unions.