Long before she knew what bookkeeping or accounting even meant, Derline Pierre-Louis was already doing it. At just 12 years old, she was closely observing her moth er—a serial entrepreneur who successfully ran everything from a restaurant to a residential cleaning business. Watching her mother juggle operations, finances, and growth sparked a passion in Derline for the behind-the-scenes work that keeps a business thriving.

That passion eventually became a purpose. Derline founded Economic Solution Services, Inc. (ESSI) to provide small and mid-sized businesses with the financial clarity and support they need to succeed. What began as a solo venture grew into a powerhouse team of accountants, bookkeepers, CPAs, and tax professionals—all sharing Derline’s commitment to excellence.

Today, ESSI is known for its Cash-Flow Centered approach to bookkeeping, accounting, tax planning, and business consulting. Whether working with home-based businesses, network marketers, or real estate investors, Derline and her team are driven by three core values: Professionalism, Responsiveness, and Quality.

Her mission is simple: help clients save money, stay compliant, and grow with confidence. Her passion lies in crafting smart tax strategies that work year-round—not just during tax season.