As Founding Partner of The Cassina Group, Charleston’s premier boutique brokerage, Robertson blends deep market intelligence with creative, data-driven strategy to deliver extraordinary results. His precision marketing and negotiation expertise extend across Charleston’s most sought-after areas — from historic South of Broad and The Crescent to Sullivan’s Island, Isle of Palms, Kiawah Island, and South Mount Pleasant’s waterfront enclaves where his record-setting transactions have redefined luxury benchmarks.
Robertson’s portfolio includes some of the most significant residential sales in Charleston history, including 5 East Battery ($18.25M), 202 Bank Street, Old Village of Mount Pleasant ($14M), 13 & 15 Meeting Street ($12.6M), and 147 Flyway Drive, Kiawah Island ($11.65M). His clientele ranges from long-time local families to national executives and international investors drawn to Charleston’s timeless architecture, coastal beauty, and lifestyle.
