Is there any tax advantage to hold it under an LLC?

We own 7 properties that we will start developing in 2025.We are currently remodeling my wife’s two-story home, turning that into two rentals.A developer contacted us and is using our largest plot to build a four-story condo building trading one condo for the opportunity.We drive and live in an 18 wheeler debt-free saving up capital for the next opportunity. 

There is a very old door intercom and buzzer system that needs upgrading.

When negotiating, using softer language like, "Is there any flexibility in that number?"

What do you guys see out there, and is MF a good choice in this market?

@Natalie JohnstoneYou can purchase property anywhere with a LLC from any state.

Does anyone know where these zones are located?

Our expenses are about $200/mo with a gardener, we manage it ourselves.  

There are some packages that offer great property management, but are really lacking in the accounting side.

My wife and I are very interested in finding hard money lenders and investment real estate agents that can help us flip multiple homes over the next year.