Thanks in advance, look forward to being a part of the BiggerPockets community.

I am about to pay the land cash 500K, then build 10 apartments for roughly 1.5M.

Look around your town and find some relatively new apartment or condo complexes- who built them? 

They originally wanted to phase out STRs with deed transfer, but the complexity and lawsuit risk of that verbiage had them change to this. 

Our HOA/complex manager has saved my butt more than once when a guest has locked themselves out of the unit and I'm across town or whatever.

This month's Units magazine from the National Apartment Association has a good piece on fraud detection.  

Dependable routine maintenance is a part of this property with a full time team on site at the villa. 

I want to invest it wisely so that a part of it is used for my living expenses and the remainder invested in RE producing cash flow and appreciating over time.

Other strategies include gifting portions of the property to reduce the taxable estate or exploring more complex options like a Qualified Opportunity Fund or a Charitable Remainder Trust to defer or minimize taxes.

If you make decent income the deferred income can be substancial but you have to do something with those funds; As a part time real estate investor that's where the SDIRA comes in handy.