Finding it through your Facebook sphere shows the power of networking, and keeping the rehab cosmetic was a smart way to minimize risk and maximize profit.One thought: Have you factored in holding costs, loan interest, and potential market fluctuations during the 45 days?

I am not seeing any smart smoke detectors on the market that can detect weed smoke (freshair only takes large orders for 40 or more) .

Make sure to maintain a cash reserve (3-6 months of expenses) to handle unexpected repairs or vacancies.It’s smart to consider the “what-ifs,” but don’t let them hold you back.

Caveat is that you should be reinvesting those profits back into other smart investments so that you aren't missing out on compounding gains. 

Smart TV with Guest mode.

Ten acres in Texas with a mobile home to start is a smart way to get your foot in the door while planning for your dream home. 

Again, not familiar with your market but your numbers seem conservative, which is smart.

Cleaning up the lots to unlock their development potential was a smart move.

Real estate's "gross rent multiplier" is Wall Street's "sales to revenue",  "cap rate" is roughly "P/E ratio".When evaluating markets and investments I tend to start with GRM (or lazily the 1% rule), then attempt to return a cap rate based on assumptions about costs, then I work my way to multiple years of projections (assumptions about inflation, amortization, tax benefits, etc), and if I am partnering with one of my smart friends I have to pull up an IRR (internal rate of return).I also look at regional employment levels, median income to rent ratio in the zip code etc. 

It's the overarching reach to pull an entire thread that doesn't come from moderators that is my issue and that goes to the site's focus on new investors way more than experienced.Everything is built to attract revenue and that's smart business.