Cornerstone Insurance
Carrier website links, underwriting access points, mapped product lines, and appetite notes in one place.
This appetite summary is only a guide. Confirm eligibility, submission requirements, restrictions, and binding authority directly with the carrier or underwriter before relying on it.
Carrier appetite summary
Multiple unrelated entities use the name "Cornerstone Insurance" (including agencies, MGUs/MGAs, and a Nigerian carrier), and current public sources do not clearly identify a U.S. admitted/ non‑admitted insurance **carrier** named exactly "Cornerstone Insurance" that publishes its own underwriting or producer guidelines. The best‑matched U.S. results under the Cornerstone name are: - Cornerstone Insurance Producers, LLC – a specialty MGA focused on tenant insurance programs, acting on behalf of an A‑rated carrier, but not itself the risk‑bearing insurer. - Cornerstone Underwriting Partners – a U.S. managing general underwriter and program administrator focused on P/C and workers’ compensation for SMEs, again positioned as an underwriting manager rather than the issuing carrier. - Several independent retail agencies and brokerages branded as "Cornerstone Insurance" or "Cornerstone Insurance Management" that place business with multiple carriers, not act as the carrier. - Cornerstone Insurance Plc – a Nigerian insurance company whose technical and financial reports relate to the Nigerian market and are not applicable to a U.S. carrier context. Because of this ambiguity and lack of an unambiguous U.S. carrier entity called "Cornerstone Insurance" with accessible underwriting or appetite guides, I cannot reliably state preferred classes, restricted/declined classes, geographic footprint, or submission/producer instructions for a specific carrier. Any such guidance would risk mixing details from different, unrelated organizations. Operationally, if you are trying to refresh underwriting guidance for a **specific Cornerstone‑branded program or carrier**: - Confirm the exact legal name of the insurer (e.g., Cornerstone National Insurance Company, the A‑rated fronting carrier behind an MGA, or Cornerstone Insurance Plc in Nigeria) and jurisdiction of domicile. - Obtain the appetite guide and underwriting manual from the carrier’s secure agent/producer portal or from program/MGA documentation, as these are not exposed in a consolidated public guide. - For MGAs like Cornerstone Insurance Producers or Cornerstone Underwriting Partners, treat them as **program administrators**: follow program‑specific guidelines and the fronting carrier’s rules, and do not generalize to other "Cornerstone" entities. Until a precise carrier legal name and market (e.g., U.S. admitted P&C, surplus lines, life/health, Nigeria, etc.) are specified, no authoritative underwriting guidance can be produced for "Cornerstone Insurance" as a single carrier.