I personally used business credit cards to BRRRR a deal—no money came out of my pocket.

Data point: we have a long-term rental in a popular STR neighborhood listed through Zillow right now.Every person who writes asking to do some sort of arbitrage is blocked by the Zillow platform.I don't even have to say "no thank you anymore."  

Small boutique firm, lower mgmt fee, personalized service, good mentions from here (BP forums), focused only on KC.

I personally like the BRRRR strategy - it's not easy to pull off but it's simple and it works in theory. 

A one-person show isn’t gonna cut it.

Office space is gutsy at this time with many companies working remotely, maybe part of your investment was to bet that people will be coming back to work in person.  

One thing to note when getting conventional mortgages and spouses.There is a 10 limit per person for conventional financing.You can either do 10 conventional in each person's name which would be 20 mortgages for 2 people or if you do the mortgages jointly, will only allow 10 in total.My thoughts are not to own joint assets until you are both married. 

I have from time to time spoken with the city administrator, economic developer, & a person at building planning commission.

I personally interact with each and every guest.

Really the person that is going into the flipping game should know the market very well to do these comps on their own, and back it up by asking their trusted real estate agent/professional for confirmation.