Fannie Mae uses it and I've always found it appropriate for back of the envelope stuff. 

One last thing that I forgot to mention, which I'm afraid will come to bite me in the *** and cause an audit is that when I sold the home, the closing agent had me sign something that clearly pertained to the qualifications of Section 121 (owned and resided for more than 2 of the past 5 years prior to sale), which I checked all the appropriate boxes that qualified me.... yet there was ONE box, that likely used the phrase, "Did you use any PORTION of the property for business or rental usage during the past 5 years?" 

When you purchase an item (I'm using a checking account for all my transactions, not a credit card) and then later return it, there's apparently no way (as far as I know) to post a return/refund transaction so that the Expenses screen appropriately reflects your total expenses for the year.

My question is what strategy should I take to appropriately LLC the houses considering I currently reside in FL? 

Like far too many newbies, you chose to jump in with both feet without the appropriate knowledge, skills, relationships, etc.

But, then I think is a flip in this market climate appropriate?

A tenant complaining online might indicate that the property manager handled them appropriately, so be sure to ask the manager for their side of the story.7.

It's a historic house and I turned it into a multifamily, got the rehabilitation certified by the NPS so I got a bunch of tax credits, and it's been a cash flow cow for the last two years.

Initially I had thought that this company only does property management, but as it turns out they help the investor from A to Z, when it comes to finding appropriate agents, lenders, contractors, handymen, managing rehabs, management, providing advice on the best investment strategy, etc. 

Proactive communication, addressing issues head-on with plain language, acknowledging mistakes and not just blaming "the market" or "interest rates".I am invested with a few operators who have made capital calls - all of them came as a surprise and only one was messaged appropriately.