What should I do if my Sullivan's Island agent stops communicating in the middle of a deal?

Document every attempt to reach your agent, then contact their broker-in-charge directly, since the broker is legally responsible for supervising agents and resolving exactly this kind of problem. You can also file a complaint with the South Carolina Real Estate Commission if the silence puts your Sullivan's Island deal at risk. Brian's team commits to same-day responses specifically because deals fall apart when communication does.