The biggest advice I would give on this is just be patient and be very communicative with your PM.

Communicate w/ your PM, the City and follow up until it's resolved quickly. 

$1,500 per entity may seem high at first glance, but the cost can vary significantly depending on the complexity of your tax situation, especially with multiple LLCs, state filings, and the need to correctly allocate capital contributions and losses on the K-1s.

The govt absolutely has to help nudge new construction or this problem is never going to be corrected. 

It's always best to consult with a real estate attorney to make sure you're structuring the deal correctly.

A Heloc is loan that can become a sore thumb if not used correctly and can hurt the property it's on and the users credit.If you are going to use the funds for a down payment then a Cash out refinance is what you want to do to get the cash in hand. 

None of these changes were communicated until right before closing.

Austin is correct, a cost segregation can help you break down the depreciable basis of the property into personal property (5 year), land improvements (15 year), and buildings (if any such as clubhouses, laundry rooms, etc.).  

If your goal is to grow your LLC, consider arranging all of your properties under an agreement with your LLC to manage them & take all of the legal steps to ensure that the structure is correct. this may involve creating LLCs in the state(s) your LTRs are in to own the property and your PM LLC managing those properties, so that you don't have a concentration of all of your portfolio in one entity.

Is that correct?