So she's just behind in her mortgage and probably has a notice of default or whatever the procedure is in Florida.Your ability to get a loan for the home has nothing to do with her payment history on the home.  

Shortly after, I noticed another listing using my property photos but with different rent prices.

I would give them their non-renewal notice as soon as I possible.

The Husband sent me a text telling me that he's giving me 6 weeks notice and I should work things out with his wife.

While competition hadn't changed dramatically, we noticed some of the competition had pushed up rents on other 3 and 4 BRs in the area.  

I noticed that your initial post was from 4 months ago and would love to connect with you to pick your brain about your progress over last few months :)

You'll have to read the details in your PPM and Capital Call notice but generally you send in more money to maintain or decrease, but never increase, your original position, It's not like putting money into a losing stock where you now own more of the company for a lower average price.You're far from the only person this has happened to.

The return on equity is probably very low considering they are paid off so maybe explore refinancing or selling the lowest performing one(s) or your biggest headaches to reinvest in more lucrative deals.I noticed you also used a metric of number of rentals to attain your goal rather than $$$/month.

I would be surprised if there weren't notices given to both the defaulting End Buyer (You're in default, you must close by X date or we're forfeiting your deposit) as well as the escrow agent (Buyer defaulted, see contract Earnest Money paragraph regarding release) prior to that actually occurring.

I don't know why you would think a tenant requesting notice before you accessed the property would be an "unreasonable demand".