I found out pretty quick my skills from years of running LTR didn't translate to STR and had to learn a whole new set of skills (some of which I already had from a career working with the public).  

I also ran 7 full marathons in one year because she was putting in 18 hour days and I could only drive Uber for so many hours after work and needed something else too do.

As a percentage closing cost as percentage goes down as value increases but we will 15X to account for closing costsNo cash flow per OP.2% market appreciation equated to 30% + 15% = 45% 3% market appreciation equates to 45% + 15% = 60%4% market appreciation equates to 60% + 15% = 75%Recognize in virtually all markets the cash flow increases with hold length especially if a fixed rate loan. 

You might consider: Consulting a Real Estate Attorney – Your emails may possibly prove misrepresentation.Requesting Public Records – A FOIA request might reveal why the city denied you but later approved the duplex.Escalating to City Officials – Bringing this to local officials could expose inconsistencies.Exploring Tax Write-Offs – A CPA might help offset your financial loss, if it is possible.I’d definitely seek legal advice.

I have seen services like Likely.ai, PropertyRadar, PropStream etc.I'm also open to coding via Python based on publicly available APIs. 

High net worth LPs don't really like to reveal themselves on public forums.

I'm not sure I would want to be in a blind pool fund at seemingly a late inning stage at this point in the cycleFinally, if you're an average Joe wanting exposure to this sector I would strongly suggest taking a look at the public REITs as an alternative. 

If created correctly, it could be sold (in full or part) to a note investor that would payoff the underlying 1st from proceeds when they bought the wrap note. 

On public websites, I see some options to acquire a duplex in central Los Angeles under $550K which would require at least another $50K of work if I do not outsource most of the labor.

Do you mean the bank information from which I am taking loan will be public?