Are you dealing with a divorce, custody dispute, or other family law issue in the Upper East Side? Whether you’re ending a long-term marriage, navigating a high-asset separation, or trying to protect your relationship with your children, family law matters are among the most difficult and deeply personal legal issues anyone can face.

At The Mandel Law Firm, we provide experienced, compassionate, and highly strategic legal counsel to clients throughout the Upper East Side of Manhattan. We know that behind every case is a family, a future, and a need for trusted guidance. That’s why we’re committed to delivering strong representation with a human touch—helping you move forward with confidence, no matter how complex your situation may be.

Why Upper East Side Clients Choose The Mandel Law Firm

The Upper East Side is home to professionals, executives, artists, and entrepreneurs—many of whom face high-stakes decisions when their family lives change. At The Mandel Law Firm, we recognize that every client has unique needs. We take the time to understand your goals, protect your interests, and craft legal strategies tailored specifically for you.

From discreet prenuptial planning to aggressive courtroom litigation, our approach is both personalized and effective. Clients trust us because we combine the attention and care of a boutique practice with the strength and resources of a top-tier New York City firm.

Family Law Services We Provide to Upper East Side Clients

At The Mandel Law Firm, we represent clients in a full spectrum of family law matters. Whether your issue involves children, finances, marital assets, or future planning, we’re here to provide the guidance and protection you need.

Divorce Representation

We handle every type of divorce—from straightforward separations to the most complex, high-conflict cases. Our attorneys are skilled at resolving disputes through negotiation when possible and are equally prepared to litigate aggressively when necessary.

• Contested Divorce: If you and your spouse cannot agree on major issues such as support, custody, or asset division, we will develop and execute a comprehensive legal strategy to protect your rights in court.
• Uncontested Divorce: For couples who agree on all aspects of their separation, we guide the process efficiently, helping to draft enforceable agreements and finalize the divorce with minimal stress.
• High Net Worth Divorce: We frequently represent clients with significant assets, including real estate, businesses, intellectual property, and investments. Our firm works closely with financial experts to ensure a full and fair division of marital property.

Child-Related Legal Matters

Children’s well-being is at the heart of many family law cases. We take a child-centered approach to parenting disputes while always advocating for our client’s rights.

• Child Custody & Visitation: We work to establish parenting plans that support your child’s best interests and preserve your relationship with them, including negotiating joint or sole custody arrangements.
• Child Support: Whether you are the recipient or the paying parent, we ensure the financial needs of your child are met without compromising your financial stability.
• Parental Relocation Requests: If a parent wishes to move with the child, we can help request court permission or challenge the move based on its impact on the child and custody agreement.
• Grandparent Custody & Visitation: We represent grandparents who play vital roles in their grandchildren’s lives and seek formal legal rights to maintain those relationships.

Financial and Relationship Agreements

Protecting your financial future—before, during, or after a marriage—is critical.

• Prenuptial and Postnuptial Agreements: We draft and negotiate agreements that protect personal and business assets, clarify financial expectations, and reduce conflict in case of separation or divorce.
• Spousal Support / Alimony: Whether seeking or contesting support, we ensure that any maintenance orders are fair, appropriate, and sustainable.
• Annulments: For marriages that were invalid from the start, we assist in pursuing annulments, guiding you through this legally distinct process.

Post-Divorce Disputes and Enforcement

Life doesn’t stand still after divorce—and neither do your legal needs.

• Post-Divorce Modifications: We help adjust custody, support, or visitation arrangements when circumstances change.
• Enforcement and Contempt Actions: If your ex-spouse violates court orders, we take swift legal action to hold them accountable.

Additional Family Law Services

• Pet Custody: For many, pets are family. We help clients negotiate or litigate for custody of beloved animals during a separation or divorce.
• LGBTQ Divorce and Family Law: We proudly represent LGBTQ clients, helping them navigate same-sex divorce, non-biological parenting disputes, and family planning issues with sensitivity and experience.
• Paternity Cases: Whether establishing or disputing paternity, we handle these sensitive matters with care, as they often affect custody and support outcomes.

Meet Steven J. Mandel: A Champion for NYC Families

For over 40 years, Steven J. Mandel has been a leading voice in New York City family law. He built this firm on a simple but powerful principle: “Your problems are now my problems.” Steven has represented thousands of clients with integrity, grit, and compassion, earning a reputation for getting results without compromising values.

Under his leadership, our firm has become a trusted name in Upper East Side family law—known for practical solutions, strategic representation, and unwavering client commitment.

Supporting Families in the Upper East Side

Life in the Upper East Side often involves significant assets, public visibility, and a desire for discretion. We understand these dynamics and work diligently to protect your privacy while delivering the results you deserve. Whether your concern is safeguarding your financial future, protecting your children, or navigating a nontraditional family structure, The Mandel Law Firm is here to help.

We also know that legal challenges don’t end when the case is over. That’s why we remain committed to our clients long after final judgments are issued, assisting with enforcement, modifications, and evolving family circumstances.

Schedule a Confidential Consultation Today

If you’re facing a divorce, child custody issue, or any family-related legal matter in the Upper East Side, let The Mandel Law Firm stand beside you. We offer the experience, empathy, and legal strength you need to protect your family, your finances, and your future.

Call 646-770-3868 or contact us online to schedule your private consultation. Discover why individuals and families across the Upper East Side choose The Mandel Law Firm when everything is on the line.