I have also begun to set the stage to do my own parking deals. 

If your goal is to grow your LLC, consider arranging all of your properties under an agreement with your LLC to manage them & take all of the legal steps to ensure that the structure is correct. this may involve creating LLCs in the state(s) your LTRs are in to own the property and your PM LLC managing those properties, so that you don't have a concentration of all of your portfolio in one entity.

Think uber/lyft driver contractor structure.But the call center staff who handle the important stuff like leasing, arranging repairs, etc. work overseas and likely do not have intimate knowledge of your rental area.That said, I’m not bashing this model.

Building housing is subject to a significant array of regulatory costs, including a broad range of fees, permits, reviews, and other requirements imposed at different stages of the development and the construction process, with both a direct cost and a time/delay cost.

Since I'm approaching the stage where I'm looking around for a builder what are your thoughts on working with a seasoned rehabber that wants to get into GCing new construction?  

There's a chance they will say no (because they showed you 6 properties and expect to be paid) in which case perhaps you can arrange for their managing broker to set you up with a different agent in the same brokerage and give the first agent a referral fee for their efforts/ for referring you.  

Far too many get stuck in the "paralysis by analysis" stage, thinking they just don't know enough to get started.

But the way you have arranged the owner financing, and build costs, followed by refinance…this is a repeatable model for you.  

This all sets the stage for what I share next and that's the frequency in which those who post about their lofty goals are seemingly unaffected by the sound advice those who have nothing to gain have to share.

If you're interested, we can also arrange a property tour to help you get familiar with the area and see what’s available!