Can his new wife have ANY CLAIMS OR RIGHTS TO THIS PROPERTY while they are married or if they ever divorce?

Family owns property in Turks and Caicos Island. My brother is a partner of that property. He is marrying in Florida. We (the rest of the family) live in South Carolina. We owned for over a decade. All payments for mortgage is paid thru us, she has not invested anything monetary. She is a real estate agent and I do not trust her.