Umbrella insurance policies

[John Chapman]

I have a number of rental properties that I have purchased over 25 years.  I want to get an umbrella insurance policy to increase the equity I have accrued.  Is there a rule of thumb for how large an umbrella insurance policy should be?  Is there a fixed amount-- say 2MM-- or should it be a percentage of the real estate equity that you are trying to protect?  Or does it perhaps depend on the region of the country that you are in?  How does one decide on the amount of the umbrella insurance policy?