Umbrella Policy for small time landlord

[Michael M.]

I have owned a 2 family in the Bronx (one apartment is mine, the other I rent out) for 5 years and just had basic homeowners insurance through Hyundai. I just purchased another 2 family around the block that will be a rental property. I debated creating an LLC, but after talking to a few different people, it seems that an umbrella policy makes more sense.

What companies have other people used in this scenario?  

Is there a different type of insurance I should be looking at?

Is a big name insurance company better than something I haven't hear of?

Allstate won't cover multifamilies, and Geico won't do it unless I get a really expensive car insurance with them first.

Thanks!