These nuisances didn’t rise to the level of evicting the tenants, so basically I just had to suffer.

Level.

Wanting to connect with other agents/people that are exploring blockchain for Real Estate and companies that are focused in this area as I believe its the way forward on so many levels.

You can buy a green laser level for under $100.

There is at least a National level form that she should have filled out as far as the eviction for nonpayment protection goes- maybe she has done this already. https://www.cdc.gov/coronaviru...This is to say that tenants are supposed to make partial payments if possible (which you said she has), and that payments will be due when the moratorium ends in some States.

My high-level plan is to leverage all cashflow producing properties in my general area (NE US) using #1 the equity I currently have in my SFH ($100k-$150k) and #2 using the cash I've been saving/investing ($200k-$300k).  

My guests this weekend were not great either, but you win...However I may win on the stupidity level.

But you don't seem to know this, because it touches on the primary problem with this investment: you bought into an expensive, renovation-heavy project without knowing much about renovation, and cavalierly dismissing how difficult it to carry out and/or get others to carry out on-time, on-budget renovation at a level of building quality that doesn't decrease the value of an expensive old house.Best of luck to you and I sincerely hope you prove me wrong.

The LLC comes in very handy for larger investments, particularly at the commercial level where it becomes much easier to secure financing through the entity. 

Even exclusive use common elements have levels of maintenance that can be split between owner and HOA, such as repair, upkeep, and replacement.