The horrible tenants had given notice then change their minds.

In my mind, a house hack should create a very low ($500 or less) monthly housing expense or eliminate your housing costs all together.

The first thing that came to my mind was also that they might pull the "ESA" card.

In her mind you can use the deposit to cover her rent for August and she will save her money so she can use it as a downpayment on the next unit.If you tell her you don't intend to renew at the end of the lease, she will pay August rent but she won't pay September rent.Let's pretend she pays August rent on the 8th.

The question I am wrestling with and I am literally out of my mind thinking about it - shall I rent the current home (A) and hope that the property appreciation will make up for the lost savings and more (build a asset and income stream over time)  or should I sell it (A) and invest the proceeds in (B) and bring down the monthly expense. 

There is a large market for sub $1500 SFRs, once you break that limit the pool of applicants gets smaller due to demographics and income, but keep in mind that a lot of the downtown brand new class A apartment buildings are charging anywhere from $1700 to $2600 a month, even more in the Third Ward.

Do you mind sharing what terms are you getting on the commercial LoC?

If I was in the tenant's shoes, I wouldn't mind because I obviously wouldn't be in the bathroom with the other person at the same time.

Ironically, it opened my mind to the stock market.

Keep that in mind for your future prospects as I can imagine that will be a HUGE change!