About

William David Sullivan is an experienced attorney with more than 35 years of practice serving clients through Sullivan Hazeltine Allinson LLC | Law Offices of William David Sullivan in Wilmington, Delaware. His practice focuses on litigation, bankruptcy and debt matters, and Chapter 7 bankruptcy, giving individuals and businesses practical guidance during some of their most challenging legal and financial moments. Based in Wilmington, he represents clients seeking clear, strategic counsel from a lawyer who understands both the procedural demands of litigation and the personal impact of financial distress. Throughout his career, Mr. Sullivan has earned a reputation for his professional, client-focused approach. He understands that each case requires careful attention, thoughtful planning, and a commitment to protecting his clients’ interests. Whether helping a client navigate debt relief options, preparing a Chapter 7 bankruptcy filing, or handling a contested legal matter, he works to provide straightforward advice and responsive service tailored to each client’s needs. His background in litigation also strengthens his ability to evaluate disputes from all angles and pursue practical solutions that align with his clients’ goals. Mr. Sullivan is dedicated to helping clients move forward with confidence. He brings extensive experience, steady judgment, and a results-oriented mindset to every matter he handles. Clients turn to him for dependable representation in bankruptcy and litigation matters throughout Wilmington and the surrounding Delaware community.

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