LLC in the country where you buy?

Few facts:

One of my partner.

Buy properties for rental in US

Foreigner with LLC in Florida and ITIN.

He wants to buy in other states beside Florida.

What's the best to do? Open one LLC in each state?

Can he use the Florida LLC?

What about the funds to buy? If those are in the Florida LLC company in the bank. What's the best to do to use it if he needs to open new LLCs?