Realtor Cass Costa recently joined Robert Paul Properties’ Osterville office as a sales associate.

Cass brings 34 years of experience in Cape Cod real estate sales, specializing in listing and selling homes and condominiums at New Seabury, according to a statement.

"Cass is truly a part of her community and her understanding, dedication and professionalism speak to the culture we have built at Robert Paul," said Paul Grover, co-owner. "We are happy to have such talented Realtor join our Osterville office."

Cass is a graduate of Boston College with a master’s degree in psychiatric social work. She started at Staten Island Mental Health then proceeded to Howard University as chief social worker in the Department of Family Planning. Cass also served as a conservation agent in the town of Mashpee for more than 10 years. She is a lifetime member of the National Association of Home Builders as well as 7 time Women’s Golf Champion at New Seabury.