Mark Arensberg is a business transactional attorney with more than four decades of experience advising companies on structuring, contracts, and complex commercial matters. He has been practicing since September 1982 and is preparing to reach his 44th year in the legal profession in 2026.
Mark has built his career around business transactional law, focusing on clear, practical legal guidance and long-term client relationships. After being admitted to the United States Tax Court in December 1986, he developed the ability to handle complex financial and tax-related matters across a range of industries. At the same time, he has remained active in literacy efforts, volunteer work, and family life.
Arensberg's practice has consistently centered on business law and transactions. Over 43 years, he has advised entrepreneurs, corporations, and professionals across the United States, offering support that aligns with real business needs. His early Tax Court admission strengthened his ability to manage detailed tax and financial issues.
Lawyer Mark Arensberg has maintained long-term relationships with clients, including representing a Denmark-based company for 30 years as of September 2024 and providing legal services to another business since 1985. These relationships reflect steady service over time.
After serving as General Counsel for a group of companies involved in investment advisory, asset management, and trust services, Mark established his law office in January 1990. The firm was created to provide reliable legal services without the complexity of larger firms, offering direct communication, practical advice, and continuity. Its referral network extends across the United States and internationally.
Arensberg's services include business structuring, contract drafting and negotiation, franchising systems, and commercial real estate matters, including development, acquisitions, and leasing. He also provides consulting in strategic planning, financial restructuring, private placements, and mergers and acquisitions. He has served as a bank board member and on its commercial loan review committee.
Outside of Arensberg's professional work, he has supported community programs for more than 20 years alongside his spouse, helping foster children and families. He has worked as a reading mentor and supported literacy initiatives. His involvement also includes youth programs, educational institutions, health organizations, and faith-based outreach. He provides pro bono legal services and has coached youth sports.
Mark maintains an active lifestyle, including skiing, boating, and cycling. He will soon celebrate his 46th wedding anniversary and enjoys spending time with his four children and nine grandchildren. He also cares for two dogs.
Mark Arensberg, Attorney, continues to demonstrate a steady, service-focused approach to both his legal career and community involvement as he approaches his 44th year in practice.
