Another lever you can pull is marketing the units in a different way if you havent explore getting professional photos done or styling the unit further with a professional decorator.

Check a few out and see what fits your style.

It might be worth testing a few until you find the one that best fits your style and business model.

There are more factors than just the community (#beds, level of theming, location to the amenities, style of home (single family, townhome, condo) and others) But I would strongly advise to stay within some of the same communities you mentioned like Storey Lake, Windsor Hills, Championsgate and a few others if cash flow is your goal.

Will make this pursuit their full-time job for the next several years, and commit whatever they have, aside from a suitable personal emergency fund, to the thesis.  

The zoom meetings are a free for all and Jerome relies on his hype communication style to amp people up but there is no content or context to get amped up about.

Find the style that people are doing in the area then find equivalent options for materials at local supply houses.

I only hope my own posts recounting what my hyperlocal experiences have been like here in Pittsburgh, the self-styled "Paris of Appalachia," do not in any way encourage people to follow the OP's lead.

I'm thinking I can just write a simple letter giving notice that the lease will end at the end of 12 months letter style without citing any specific reasons. 

If it is a private money/ commercial style  lender, it is a relatively simple process.