Sandra is the founder and Managing Director of American College Counselors. She is a graduate of the University of Georgia, where she was awarded a full ride scholarship from Rotary International for her excellent academic performance. There, she obtained a Bachelors of Arts in Journalism with minors in Marketing and Advertising. Prior to launching American College Counselors, Sandra was the Director of College Counseling of one of the largest College Counseling companies in the United States. Mrs. Diaz is fluent in Spanish and English and has helped hundreds of domestic and international students get admitted into their dream schools.

Prior to starting her College Counseling career, Sandra spent over ten years working in marketing and advertising at multinational corporations like Texas Petroleum Company and DDB Needham. She then moved to Madrid, Spain, where she worked at a marketing and public relations company. In 2001, she moved back to the United States, where she became the founder and broker of Village Realty and Investments, Inc.

Outside of work, Sandra volunteers in many community related programs such as Beaux Arts, an organization that raises funds to support the Museum of Art of Fort Lauderdale. Sandra is also a member of Charity Guild and serves as the President of the Matilde Santamaria Foundation, an international nonprofit organization that provides educational support to underprivileged children in developing countries.