Permissible insuring combinations without additional capital funds.

A property insurer may include such amount and kind of insurance against legal liability for injury, damage, or loss to the person or property of others, and for medical, hospital, and surgical expense related to such injury, as the office deems to be reasonably incidental to insurance of real property against fire and other perils under policies covering residential properties involving not more than four families, with or without incidental office, professional, private school or studio occupancy by an insured, whether or not the premium or rate charged for certain perils so covered is specified in the policy. Any provision of s. 624.609 to the contrary notwithstanding, no insurer authorized as to property insurance only shall, pursuant to this subsection, retain risk as to any one subject of insurance as to hazards other than property insurance hazards, in an amount exceeding 5 percent of its surplus as to policyholders.