Holding commercial multi-family buildings in an estate versus LLC

[James Morris]

Hello, I am seeking the expertise from commercial investors. 

Is it better to hold your commercial multi-family properties in separate LLC's or place the title in an estate?

What are the pro's and con's?

Currently, I'm holding a 10 unit building in a LLC and am contemplating creating an additional LLC to hold the title of a 12 unit. However, multiple LLC's in Illinois($500 initially and $250 annually) can get expensive to maintain.

The goal is to create additional layers of protection and not reveal the owner of the property to the public. 

Lastly, I have umbrella insurance serving as additional coverage. 

Thanks.