My suggestion is to sell all four investment properties and trade up to a larger multi-family property using a 1031 exchange and start realizing some economies of scale.

If they don't get aid and its just annoying they didnt get any but I can swing it, I'll be ok w that.

@Jennifer OsborneHave you gone to any of the meetups in the area, usually some wholesalers some syndicators and other trade people who looking for business.

Here is an example link:  https://www.signwindisplay.com/trade-show-displays/trade-show-booths?

I wouldn't swing for the fences on the first few...  

e.g. real estate professional (Sec 469) with trade or business (Sec 162) with material participation (Sec 469)You do not have to materially participate in an activity for that activity to be a trade or business. 

I kind of view development as a home run swing while investing in existing facilities is more like swinging for a base hit.As for combining with other revenue streams, I love the idea from a diversification standpoint but I'm not sure I would want to simultaneously learn two new businesses. 

Everything is a trade-off.

I have a basic feasibility done from an architect...But to get the numbers, Is it just a matter of calling up each trade?

And remember to duck when one takes a swing at you (unless you want one to assault you).