I can sell the units hopefully for about 840,000 before realtor fees of 5 percent and whatever I'll be taxed on.

When rent grow of 100 a door happened it still wasn't enough for the high rates to refi the loan and they could not sell off for what they had into it.

If this is a franchise of some type, then it's usually guaranteed by the corporation, so if the tenant leaves, the corp takes over responsibility.It will take you 18 years to recover your cost of $700k.The property can appreciate all it wants, but unless you sell the property, or refi (which will probably kill your cash flow), that appreciation is just window dressing. 

Periodically, the tax assessor office will determine what a property could realistically sell for, known as the fair market value.

I'm selling my apartment furniture in Tucson, AZ from my airbnb for a 2 bedroom / 2 bath, this includes a full living room, bar stools for the kitchen, a fully stocked kitchen, and laundry room.

For example, I help out-of-state investors buy and sell in the Dallas/F.t Worth area and my preferred lender is a fellow investor.

i've seen a few 2 families on the MLS In my price range. out bidded on one and the rest were too far gone for the price the sell was asking. but I'm working towards finding off market properties, auctions, whole sellers etc.... if I can find a distressed property thats priced correctly I will try my best to grab the opportunity.

They use their case studies to sell you, but all houses/locations aren't going to produce those same results. 

We love commercial transactions as the funds are usually safer than with single family investors.

I am generally reluctant to sell a property, they have all taken some effort to get decent returns and why give that up unless it is going to be a dog moving forward.All the best!