Can Home Insurance Companies Drop You? 
Yes , but typically it takes some very substantive issue if the policy is more than 60 days into being in effect . On fairly modest basis you can see carriers withdraw from a state or territory because their loss experience may endanger the health of the overall insurer . Also there can be situations where an insurance department sees an ongoing impairment of the carrier and proceeds to cancel all policies for the carrier . This happened in Texas following Hurricane Ike . If the property is not properly maintained , there was misrepresentation or even sometimes because it would be against public policy to continue to provide liability insurance in the face known instrumentality of putting the public in danger . You see very infrequent last item because Insurance Departments often are involved in that regard . but you can see this happening with dangerous dogs etc. . There also can be changes in exposure that were no known at inception . For example a build up combustible brush near the property . So , it generally occurs because the frequency of loss is unsustainable over time . or the conditions are changing for the worse or the insurer now recognizes some information in a loss that was not previously known . 