Do you think there is any way for the bank to take a low ball offer and I could flip it for a good profit? 

Not sure that 30% profit is realistic.

I remember reading a book several years ago about an investor who specialized in this  (it could have been this one: "Swapping Real Estate for Fun and Profit"), but I need something a little more specific. 

My net profit would be equity + monthly "spendable" cash to spend or use/save towards another home.   

Using hanging bags and postcards + business card.Intend to start writing content for longer term free SEOIntend to solicit local RealtorsIntent to start our own meetupWhy We will use initial profits to pay for additional marketing (currently coming out of pocket) and to replace cash on hand for next flips making us less reliant on hard money and more able to more quickly acquire (no need for appraisal).

However, when we do our calculations, the property in Waco seems be more profitable in terms of cash flow.

I made a nice profit for SXSW this year by using Airbnb.

"I will leave the SFHs to my kids"You will need to transition to a PM depending on your health and how long you live.It should be a very nice addition to your kids retirement funds.

Not familiar with your term, "house hacking" but I'd recommend picking a few ways to learn and profit from real estate.

With those type of tenants, and the age of the property...is it going to end up being an ongoing headache that will nickel and dime away the profits?