About
Thomas E. Drennan, CPA in Libertyville, IL, offers expert services in income tax preparation, accounting, financial and estate planning. With over 30 years of experience, we handle everything from multi-state filings and amended returns to offers in compromise. We also specialize in tax resolution, QuickBooks support, and financial analysis. Whether remote or in-person, we make your experience efficient, secure, and stress-free. Clients trust us for personalized, accurate service—many staying with us even after moving out of state. We treat you like family. Free initial consultations available.