Designations & qualifications Liz Flint carries the SRES (Senior Real Estate Specialist) Designation ., Seniors Real Estate Specialists® are REALTORS® qualified to address the needs of home buyers and sellers age 50+. The SRES® Council awards the SRES® Designation to those members who have successfully completed its education program. By earning the SRES® designation, your REALTOR® has demonstrated necessary knowledge and expertise to counsel clients age 50-plus through major financial and lifestyle transitions involved in relocating,