A large tree fell during the storm last week and took the stairs out so the tenant has no way to access the unit until we can fix the power lines and remove the tree which we're working on.

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.

I am feeling overwhelmed and have many questions.

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  

I have two primary investor-partnerships thus the buy power is doubled as major projects come from 2 sources.

I've found including these terms in my lease as a clause is easier (too many addendums can become overwhelming).

I just still need power. 

Yes you take a pay cut but your purchasing power increases. 

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. 

However I am overwhelmed right now with a recent lead case in one of my rentals.