Umbrella Insurance Policy?

[Naga A.]

I use National Real Estate Group Insurance for my 7 properties (6 in Atlanta, GA and 1 in Tampa, FL) and have had property insurance coverage against perils (like fire) and an umbrella policy (excess liability), basically coverage against loss when landlords get sued by tenants.  I have paid about $6.00 per month per location for the umbrella policy,

They said they received an industry-wide as well as nationwide rate increase from their carriers on the umbrella policy and said if I want to keep the umbrella policy, I have to pay more than $100 per property more!  

My questions are 1.) do you guys experience similar rate increases on umbrella policy? and 2.) do you have any recommendations on insurance agents or carriers in Atlanta Georgia?