I would pull the 500K, to then monetize through yielded interest bearing markets, then pledge those yields to acquire the purchase power for the planned various down payments  

You may find it useful to seek an unofficial preliminary meeting with the local powers-that-be to get a read on how much resistance there's likely to be with your development, as well as getting an early read on things they'll "suggest" to make necessary approvals more likely.

If you make the membership of this entity the members of the other 2 LLCs then you've also probably simplified and defined decision making power as well. 

I just still need power. 

Now however, due to all prices going up and the decreasing in purchase power of the populous, the market has soften and slowed down a bit. 

Being selective about when and how you respond is often more powerful than addressing every single critique.

This is fairly standard in the Westchester area given most homes are 100+ years old and the building code / inspectors didn't really come to power until the 70s or 80s.Likely your real estate agent will note the issues. 

This project demonstrated the power of smart improvements and teamwork, delivering a strong return on investment.

There is no cash flow involved with a personal residence not being used for business purposes.Avoiding leverage on RE involving cash flow negates the power of using OPM, other people s money.

Using the Whole Life Policy (or Indexed Universal Life) is very powerful.