(b) An insurer issuing a policy providing coverage for property, casualty, except mortgage guaranty, surety, or marine insurance, other than motor vehicle insurance subject to s.
627.728 or s.
627.7281, shall give the first-named insured written notice of cancellation or termination other than nonrenewal at least 45 days prior to the effective date of the cancellation or termination, including in the written notice the reason or reasons for the cancellation or termination, except that:
1. When cancellation is for nonpayment of premium, at least 10 days' written notice of cancellation accompanied by the reason therefor shall be given. As used in this subparagraph and s.
440.42(3), the term "nonpayment of premium" means failure of the named insured to discharge when due any of her or his obligations in connection with the payment of premiums on a policy or any installment of such premium, whether the premium is payable directly to the insurer or its agent or indirectly under any premium finance plan or extension of credit, or failure to maintain membership in an organization if such membership is a condition precedent to insurance coverage. "Nonpayment of premium" also means the failure of a financial institution to honor an insurance applicant's check after delivery to a licensed agent for payment of a premium, even if the agent has previously delivered or transferred the premium to the insurer. If a dishonored check represents the initial premium payment, the contract and all contractual obligations shall be void ab initio unless the nonpayment is cured within the earlier of 5 days after actual notice by certified mail is received by the applicant or 15 days after notice is sent to the applicant by certified mail or registered mail, and if the contract is void, any premium received by the insurer from a third party shall be refunded to that party in full; and
2. When such cancellation or termination occurs during the first 90 days during which the insurance is in force and the insurance is canceled or terminated for reasons other than nonpayment of premium, at least 20 days' written notice of cancellation or termination accompanied by the reason therefor shall be given except where there has been a material misstatement or misrepresentation or failure to comply with the underwriting requirements established by the insurer.
After the policy has been in effect for 90 days, no such policy shall be canceled by the insurer except when there has been a material misstatement, a nonpayment of premium, a failure to comply with underwriting requirements established by the insurer within 90 days of the date of effectuation of coverage, or a substantial change in the risk covered by the policy or when the cancellation is for all insureds under such policies for a given class of insureds. This subsection does not apply to individually rated risks having a policy term of less than 90 days.