Your local favorite Panama City Beach Real Estate Agents | Sean Casilli, ABR® & Alice de La Penha, GRI® with Coldwell Banker Residential Real Estate. Local REALTOR ® Experts on homes for sale, mls listings, new construction, helping 1st time home buyers and investors as an Accredited Buyers Agent (ABR®) purchase property and houses for sale. Knowledgeable and experienced as a Graduate, REALTOR ® Institute (GRI). With over a decade of experience in Real Estate and Sales, we are marketing gurus for when you are ready to sell. Panama City Beach, Florida top producing Realtors®.