Master property, liability and commercial insurance lines. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Master property, liability and commercial insurance lines. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.Master property, liability and commercial insurance lines. In practice this covers independent execution, quality assurance of one's own results, and close alignment with adjacent roles and interfaces.