Consider going the route of long term rentals in a different market if this worries you.

As Bryan stated, yes RUBS is generally legal in California, but there can be limitations depending on the market and the leases you have in place. 

Build cost 2 million ($240 per square foot for a 5400 square-foot duplex) (Sale price $650 per square foot valuating the duplex at 3.5 million) Upon stabilization, the properties market value is projected to be between 4.5 and 5 million.

Timing the market does not work.

I think that add ons are very market dependent.

It may have to go to the Excess/Surplus market (ie.

I wasn't sure why you were so focused on LLC related questions... as again, to be blunt, those generally aren't that important compared to knowing a market, buying a good deal, having a good team set up, and things like that.

- Are there specific market conditions or trends in 2024 in Charlotte or Louisville that might influence your choice?

It depends on your market and timing. 

Great market for vacations and or investing.