About Sintia Petrosian, TTR Sotheby’s International Realty In her 20-year career, Sintia Petrosian has built bridges for her clients – both literally and figuratively. An accomplished realtor specializing in luxury properties, Sintia is redefining customer service in the real estate industry – imbuing first-time buyers or the more seasoned homeowner with the knowledge and confidence required to make one of the most important financial investments of their lifetimes. She marries her wealth of experience with honesty, integrity and her trademark zeal – making her one of the top producing agents in the greater Washington, DC area.