Sean M. Byrne, Esq., a principal at Bach, Jacobs & Byrne, P.A., is an experienced and skilled litigator focusing on trust, estate, and guardianship matters. One of the few estate planners who also has an active trial and litigation practice, Sean represents clients in a wide range of disputes involving these complex areas of law. Mr. Byrne’s expertise spans both sides of trust, estate, and guardianship litigation, having successfully represented fiduciaries—such as trustees, personal representatives, and guardians—as well as beneficiaries in various contested matters. Mr. Byrne also assists trustees and beneficiaries with judicial modifications of irrevocable trusts.
Trust & Estate Litigation

Trust & Estate Litigation
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Litigation in the trust and estate context can arise from a variety of issues, including, but not limited to:
- Will or trust challenges
- Contested guardianship proceedings
- Allegations of breach of trust or fiduciary duty
- Modifications of irrevocable trusts
Mr. Byrne’s extensive experience includes defending testamentary documents against challenges and safeguarding fiduciaries from allegations of breach of duty by beneficiaries. He has represented both corporate and family fiduciaries, navigating complex legal issues to protect their interests and ensure the proper administration of estates and trusts. His thorough understanding of fiduciary obligations enables him to advocate effectively for both trustees and beneficiaries, ensuring their rights are respected in the face of disputes.
Even if the parties are not currently embroiled in litigation and outright disputes, having a litigator like Sean Byrne represent a trustee or personal representative in the administration of the trust or probate proceeding can help preempt and avoid all out expensive litigation. Sean takes a proactive approach to advise trustees, or personal representatives, and guardians to minimize their liability and protect them from future disputes.
Recognizing the sensitive nature of many of these matters, particularly when family dynamics are involved, Mr. Byrne takes a thoughtful and strategic approach to each case. The team at Bach, Jacobs & Byrne, P.A. is committed to providing comprehensive legal counsel that includes exploring all options for resolving disputes. In many cases, an amicable, out-of-court settlement is a preferred solution; however, if litigation becomes necessary, Mr. Byrne is prepared to take the case to trial, ensuring the best possible outcome for his clients. The firm’s commitment to navigating trust, estate, and guardianship disputes with professionalism and care ensures that clients receive the highest standard of legal representation.