Sophie Heinlein

Who We Are KSTM is dedicated exclusively to the practice of matrimonial and family law. Our attorneys are leaders in their field and have been involved in some of the highest-profile matrimonial law disputes in New York State and Connecticut. We are often called upon to advise high-net-worth and celebrity clients in sensitive and complex family matters. What We Do We represent clients in all aspects of matrimonial and family law, including divorce proceedings, custody disputes, and pre- and post-nuptial agreements.  We have particular experience in: Serving clients in the private equity and hedge fund space Valuing and dividing closely-held businesses Protecting pre-marital and inherited assets Navigating complex contested custody proceedings Litigating issues surrounding same-sex marriages and parental rights We also represent clients in highly contested interstate and international custody disputes, including proceedings under the UCCJEA and The Hague Convention on the Civil Aspects of International Child Abduction. Our attorneys have achieved landmark victories in federal district and appellate courts. Among other successes, we have created significant new law protecting the interests of parents and children suffering from domestic violence. Our Commitment to Our Clients We believe that every client has a unique story that requires an individual approach. There is no “one size fits all” in what we do. We listen to our clients, learn their stories, understand their needs, and fight to achieve the best results possible.  We are skilled negotiators and tough and experienced litigators. We achieve negotiated resolutions whenever possible, and we are ready to litigate whenever necessary. Most importantly, we see ourselves as more than just counselors at law. We are guides who help our clients navigate life’s most difficult crossroads. That is our commitment.