- Charleston Trident Association of Realtors
- South Carolina Asociation of Realtors
- National Association of Realtors
- National Association of Realtors e-Pro Internet Certification
- Historic Ansonborough Neighborhood Association, Past President
- Charleston Metro Chamber of Commerce, Past President
- Trident United Way, Past Campaign Chair and President
- Charleston Regional Development Alliance, past Chair
- Trident Technical College Foundation, past President, current Board Member
- Charleston Horticultural Society, Board of Directors
- Spoleto Festival USA, Board of Directors, former member
- Charleston Education Network, Board of Directors
- Communities in Schools, Co-founder
- College of Charleston Foundation, former member - Board of Directors
- Storm Eye Institute/MUSC, former member - Board of Directors
- Charleston Artist Guild, Juried Member
- Charleston Board of Zoning and Appeals, former member
- Access to a broad network of community contacts and resources
- Extensive knowledge of the tri-county region - raised in Charleston
- Commitment to customer satisfaction
- Honesty, dedication, and integrity
After retiring as Charleston Regional Director of BellSouth, Sis began her second career with Poston and Company. She has in-depth knowledge of the area and has been an active member of the business, education, and arts communties. She is married to retired Navy Captain Hal Marshall who is enjoying his second career as a real estate appraiser.
Sis and Hal share their home with Daisy the Lab and Louie, a Bichon.
In addition to her community involvement, she enjoys traveling, gardening, oil painting, and antiques.
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