Every property has to be listed
An umbrella sits above specified underlying policies. A second home insured by a different carrier in another state is a separate underlying policy, and if it was never declared the umbrella does not extend to an incident there. Households assume a personal umbrella follows the person. It follows the schedule.
Underlying limits must qualify in both places
The out-of-state policy also has to meet the umbrella’s minimum liability requirement. A northern home insured at older, lower limits is a common gap, because nobody reviews that policy when buying the umbrella down here.
One umbrella is better than two
A single policy covering both properties and all household drivers is simpler and usually cheaper than separate arrangements, and it avoids the question of which one responds. It only works if everything is on it.