Requires homeowners insurers to provide policyholders with annual disclosures of replacement cost value and the sufficiency of policyholder's coverage. Requires homeowners insurers to offer annually to policyholders increased coverage if the property is underinsured. Requires homeowners insurers to maintain records of disclosures and offers for 5 years. Provides that failure to comply constitutes an unfair or deceptive act or practice in the business of insurance.