Gabriel Derosier was born and raised in Haiti and emigrated to the United States at age 16 due to political unrest. He attended Magruder High School in Maryland received an Associates Degree in Business from Montgomery College and undergradute and graduate degrees in Management/Finance from the University of Maryland University College. He is a Commercial Loan Officer at MainStreet Bank in Fairfax, Virginia. He previously served in various roles at John Marshall Bank, United Bank and Chevy Chase Bank. He lives in Alexandria with his wife and four children. He has served with a number of nonprofits, including the American Kidney Fund, Child Center and Adult Services, Montgomery College and AHC Inc. in Arlington, VA. He loves to to exercise, spend time with family and friends and play the guitar. He and his family are also very active in their church in Alexandria.