Finding a commercial umbrella liability policy for residential in FL?

[G S.]

Hi Experts

I have multiple residential rentals in FL and have recently got a letter from my current Personal umbrella provider (Allstate) that for it to continue, I need to have all my rentals insured with them (I don't have any insured with them today), plus there is a limit on the number of properties which I can have under one umbrella (I have more). After doing some research it appears that the best would be to get a Commercial Umbrella Liability Policy, which I understand could be separate from my residence/auto/basic rental house insurance, and cover unlimited number of residential properties. Ideally that should also allow covering properties held within LLC (extending limits of the LLC insurance) and commercial properties.

So far I have not found such insurance providers. Has anyone found something like this already and with whom? thanks!