Since you used a heater in a crawl space - what type and model would you recommend?

Guidance as come from Court cases and interpretations on many of those items. 3.

I would not replace this fridge with an ultra high end model again; there is no value in that for a rental. 

My hypothesis is there could be unique considerations around:  1) insurance, 2) environmental diligence, 3) due diligence like estimating vacancy, and 4) how best to research leasing comps because commercial leases are so different among other items.

Lessons learned were when doing your rehab estimate focus on the expensive capital expense items first.

A couple issues you'll run in to trying a BRRRR in Tampa:- finding a quality contractor right now that has availability (supply chain is only an issue on certain materials such as shingles, windows, and other items but it does not affect every reno equally)- finding a deal that cash flows (or breaks even) once you refi.

What did pass, along with many other items, is a limitation of rent increases maxed out at once per year.

People having success with this model are buying within a narrow search criteria (4+ beds, 500+ sqft per tenant, 3+ showers, plenty of parking, no HOA restrictions prohibiting non-related occupants, proximity to major employers etc etc.) and hiring management that specializes in the model and has systems + methodologies in place to account for turnover, roommate politics, common area cleaning, utility costs. 

We've been working together for a year now, I exclusively wholesale good deals to him, manage his projects; in return he mentors me and teaches me his business model, and of course compensates me for my efforts.All that to say, I'd reach up the ladder, find a way to provide value to the person you reach out to, and cling on as best you can?

Look for opportunities with your brother while working in the construction/modeling business.