This is a concern given the new law in FL requiring an engineering survey by December 2024 and funding of reserves.

With 6 properties I would want a reserve of a minimum of $15K .

I guess my concern is is there any capability for vetting guests on GVR prior to confirming a reservation?

They were told that since they will be purchasing a fifth property with a Jumbo loan (with total value of loans in excess of $4 million) they would need 120 months of reserves for all of the loans put together (about $1 million in reserves). 

Equity: 250k2 Family 3/2 Purchased 2023 475k Currently worth 600k 7.25% Interest Cash Flow -1,100 a month ( I live in one of the these)Equity: 98k ( yes i put 20% down)55k in Stocks mostly apple/vti/qqq 5k Cash (reserved for emergency missed rent payments) in a 4.50% savings accountNo credit card debt no car loansI do have 60k in open credit cards 8k available for no interest for 15 months.I have a 50k Heloc on my 2 family unit at 8% interest 10 year interest only 10 year repaymentSo as a investor what would some of you guys suggest as my next investment move?

Booking.com is even more expensive than VRBO/ABNB, so you will likely be costing yourself money for every Booking.com reservation.

Regarding payment terms, the seller wants 10% at the reservation of asset (this month), 10% in a couple of month, and the balance at the signing of the deed of sale in December.

With only 30k, your reserves could be eaten up very quickly.

The easiest way is to bring on a partner who has a lof of capital they are looking to deploy, but I always encourage having sufficient reserves.  

., $100k-$200k) for reserves, renovations, and future opportunities like syndications or funds.