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New York Divorce Lawyer
New York Divorce Attorney
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Our Practice of Divorce Law

We practice all aspects of Divorce and Family Law in Staten Island, Brooklyn and Manhattan, and nearby counties in New Jersey and in Florida.

Both Litigation and Mediation services are offered in the area of Divorce, Legal Separation, Paternity, Pre-Nuptial Agreements, Post-Nuptial Agreements, Parenting Agreements, Child Support and Alimony, Domestic Violence actions, Custody, Interstate Custody and Child Abduction, Family Court and Appeals. Our firm also practices Collaborative Divorce for those clients who wish to utilize this dynamic new way of resolving their marital problems!

Our Law Firm concentrates on Family Law Issues, thereby achieving a depth of field and an extensive base of experience. Many of our clients are referred to us by former clients as well as lawyers and mental health professionals, both in New York and New Jersey and elsewhere, who know and trust our work.

Our office represents clients from all over the United States in the New York and New Jersey Courts, and in the Courts of the State of Florida.

Low up-front retainers

While many divorce attorneys on Staten Island require an up-front retainer of between $5,000 and $10,000 on all divorce cases, we only require an up-front retainer of just $3,000 on any case that we accept which is not yet in litigation! Yes, even if you and your spouse have a business, or millions of dollars in assets, the initial retainer is only $3,000, provided the case is not yet in litigation! We believe that most cases can be settled quickly and inexpensively by negotiation, rather than litigation! Obviously, if Court litigation is necessary, the initial retainer will be higher. We will give you a definite retainer quote at the initial consultation so there will be no surprises!

A Message to the Client about our Divorce Practice

When you retain us as your attorney, we will discuss the law with you, and how it relates to your situation. We will listen to you and we will develop realistic expectations and a plan of action. We believe that negotiation is frequently the most prompt and efficient means of reaching your goal. However, if settlement is not possible, we will pursue your case aggressively and effectively.

For the duration of our representation, our office will keep you current on the status of your case. We will provide quality and experienced representation from start to finish.

About Our Firm

Our Law Firm was founded by attorney William J. Leininger in 1981. Mr. Leininger is a native New Yorker who graduated from Regis High School, St. Francis College and Fordham Law School. He was admitted to the New York Bar in 1975, and was subsequently admitted to the Bars of New Jersey and Florida. Mr. Leininger has appeared on the Phil Donahue Show, the Sally Jessie Raphael Show, the Today Show, CBS Morning Show, and other national television and radio programs.

William Leininger

Mr. Leininger is assisted by his Senior Associate Attorney, Miriam Karp. Ms. Karp has over 28 years of experience in Family Law matters.

Miriam Karp

Mr. Leininger's Associate Attorney, Maria Giresi, Esq. has been a litigation attorney since 1995. She has also been an Administrative Law Judge of the City of New York. Use Ms. Giresi's years of courtroom experience to your benefit.

Maria Giresi

When we take your case, we begin work on the matter promptly. As we work for you, our office will:

  • Write your legal documents in clear, understandable language.
  • Provide you with copies of all correspondence and documents.
  • Consult with you before all important decisions are made.
  • Handle your case as efficiently and economically as possible.

Use of Experts

When necessary, we work closely with independent experts to obtain appraisals and specialized information. Our office approaches each case as a whole, while addressing each issue separately. Experts with whom we often consult include:

  • Estate Planning attorneys.
  • Financial advisors
  • Certified Public Accountants
  • Certified Appraisers and Actuaries
  • Vocational Evaluators and Counselors
  • Individual and family counselors

Our Offices

Our New York office is located at 34 Dumont Ave. in the Grasmere section of Staten Island. The office is located only 5 minutes from the Verrazano Bridge, and only 15 minutes from the Bayonne and Goethals bridges.

Our Florida office is located at 677 N. Washington Blvd., Sarasota, Florida.


If your matter is important, call now for an immediate appointment!

William J. Leininger, PC - Attorneys at Law
34 Dumont Ave., Staten Island, NY 10305
Tel. 718-979-5200


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