William J. Leininger, PC - Justia Rating Badge
William J. Leininger, PC - NY State Council on Divorce Mediation Badge
William J. Leininger, PC - APFM Badge
William J. Leininger, PC - Certified Mediator 2026 mediate.com Badge
William J. Leininger, PC - mediate.com featured member seal badge

Expert New York Divorce Mediation Lawyer: Peaceful & Cost‑Effective Solutions

Staten Island’s Premier Divorce Mediator for 31 Years

Many people think litigation is the only way to protect their interests in a divorce. But going to court often turns out to be a financially and emotionally draining process in which no one wins, and everyone loses. So, what other solutions can couples getting divorced in New York turn to?

Attorney / Mediator Bill Leininger can help you and your spouse settle your differences without a nasty courtroom battle. Attorney Bill Leininger’s Family Law Practice is truly dedicated to out-of-court solutions for couples getting divorced.. Bill is a true believer in alternatives to Court litigation and he is committed to helping you and your spouse resolve your marital dispute.

To learn more, call 718-979-5200 or contact us online to schedule a free 30 minute divorce mediation consultation.

You Don’t Have to Fight—Settle Your Divorce in Staten Island.

Litigation Alternatives like Pre-Suit Divorce Mediation are less costly, less adversarial, and less time consuming than a Court battle. It puts the solution in the hands of you and your spouse! Bill Leininger has handled difficult contested divorces involving serious custody disputes and millions of dollars of assets since 1978. He opened his own lawfirm in Staten Island in 1981 which since then has been dedicated solely to Family Law matters. In 1994, he became the first certified attorney Divorce Mediator in Staten Island. In 2021 he refocused his practice exclusively on the best alternatives to contested Court litigation, including Pre-Suit Divorce Mediation, Mediation of Uncontested Divorces, Collaborative Divorces and Mediation of Prenuptial and Post Nuptial Agreements, thus leaving the courtroom behind.

Bill Leininger brings legal knowledge, and practical insights to the mediation process that non-attorney mediators simply do not have.. Effective solutions come from experience – understanding the law, the facts and figures, and available options that will be approved by the Court.

Over 40 years of Legal Experience

Bill Leininger has over four decades of legal experience in helping families reach divorce settlements.

Litigation Free

We believe any aspect of divorce and custody can be resolved without a courtroom fight. Bill Leininger has experience with mediating complex property divisions, (involving up to $16,000,000.00 in assets), difficult custody disputes, and high-stakes alimony and child support issues. Bill Leininger uses his 40+ years of matrimonial experience to offer creative solutions, gentle guidance, and common sense wisdom from years of hard work in courtroom battles.

RESOLVE YOUR DIVORCE IN 6 – 10 WEEKS!

Among the other substantial benefits to choosing Divorce Mediation, many of Bill’s Staten Island Pre-suit mediations are completed in 6 to 10 weeks.

Staten Island Family Law Attorney Bill Leininger is a proven courtroom advocate. But after seeing how much damage divorce litigation can do without resolving the underlying disputes—and witnessing the positive outcomes of Divorce Mediation, he chose to no longer litigate divorce and custody cases, but instead turned his attention completely to litigation alternatives like Divorce Mediation and Collaborative Divorce.

Explore Your Alternatives to Dvorce Litigation in a Free Telephone Consultation, or Zoom Videoconference with both spouses.

Attorney / Mediator Bill Leininger offers a free 30 minute phone consultation, or a free 30 minute Zoom Videoconference, as well as reasonable rates for mediation, drafting of agreements, preparation of court documents, and other mediation related services. During your initial telephone consultation, or Zoom videoconference, Bill will discuss the benefits of mediation and alternative dispute resolution (ADR), and help you decide whether these methods are the right fit for your situation.

Divorce mediations can always be held virtually via Zoom and frequently in person at Attorney Leininger’s Staten Island law office. The option to mediate virtually is particularly important if you or your spouse lives outside the Staten Island Area, or you and your spouse have conflicting work schedules. Bill is one of only a few Divorce Mediators who work six days per week, Monday thru Saturday between 11 AM and 8 PM. Almost none of Bill’s virtual mediation clients ever have to take off from work in view of Bill’s six day per week work schedule, including evening ans Saturday appointments until 8 PM.

Call 718-979-5200 or contact us online to speak with experienced Staten Island divorce attorney & Divorce Mediator Bill Leininger. The firm accepts, Cash, Checks, and Mastercard and Visa credit cards.

Attorney Bill Leininger is now engaged full time as a neutral in:

Pre-Suit Divorce Mediation

Pre-suit Divorce Mediation is a process that promotes cooperation and open communication between divorcing spouses, thereby reducing costs and allowing couples to maintain control over their futures before and after they file for divorce. Because issues are settled before filing, the whole process is more streamlined, faster, and over all less expensive than court-ordered mediation and settling after a case has been filed.

Uncontested Divorce Mediation

Couples may not initially realize that certain issues must be addressed even in amicable, uncontested divorces. A mediator can help identify and resolve potential areas of disagreement that may not be initially apparent, ensuring that all aspects of the divorce are thoroughly discussed through open and constructive communication between the parties, resulting in a comprehensive clearly written agreement that can help prevent future misunderstandings and disputes.

Post-Judgment Modification Mediation

Post-judgment modification mediation is a process that occurs after the court has issued a divorce judgment, but circumstances have changed, leading one party to seek modifications to certain aspects of the divorce decree. This often involves modifications to child custody, visitation schedules, child support, alimony, or other financial arrangements. Mediation preserves a cooperative and respectful relationship between the parties, especially when ongoing co-parenting is involved, and can be less adversarial than returning to court for a modification hearing.

What Is Divorce Mediation?

Meetings with a neutral, trained professional Divorce Mediator who helps the couple work their way from impasse to solutions.

How to Select a Divorce Mediator?

It is recommended that a Divorce Mediator be knowledgeable about family law, family counseling, child development, and the mediation process.

Extensive Trial & Case Experience

Bill has tried over 2,500 divorce and family court cases in Staten Island and nearby counties in Brooklyn, Queens, Manhattan, Nassau & Suffolk Counties.

Schedule Free 30 Minute Consultation

William J. Leininger, PC. We believe we are the only Staten Island attorney who limits their practice to Divorce Mediation and mediation of Collaborative Divorce, Pre-Nup and Post-Nup Agreements.

Please click the red button below to get your Free 30 minutes Consultation with our experienced Divorce Mediation team. We thank you in advance and look forward to hearing from you.

William J. Leininger

Meet William J. Leininger

Mr. Leininger became a certified Divorce Mediator in 1994. Since then, he has mediated over 900 cases to completion. We believe that he is one of the most experienced attorney Divorce Mediators who mediates online with Staten Island residents getting divorced.

Client Reviews

Divorce cases for Bill Leininger are an everyday matter. To me, it was a frustration trial. Nerves and tension were an everyday occurrence with me. Bill helped ease my frustration. He got things done and kept me informed.

Mr. J.P.

My ex-wife and I agreed to most of our issues with our mediation process, and if there were issues, Bill would give both sides of the coin and helped us very much through a tough time. I would recommend Bill to anyone who is thinking...

Mr. W.L.

Bill Leininger represented me in a divorce and custody proceeding. He is an excellent attorney and he has integrity – a combination that was important to me and one that goes far with Judges.

Mr. R.A.

I was in my divorce action 4-1/2 years ago with no results until I retained Bill Leininger. Bill thoroughly evaluated my case and after careful review offered me options on how we could proceed and after so many years how we should...

Ms. C.N.

Bill and his staff were great. Bill was wonderful, he really pulled through for me when I needed him. Thank you.

Ms. C.B.

I was always very impressed with the client service I received. Mr. Leininger and his staff were very understanding of my needs.

Dr. R.C.

The divorce mediation attorney, William Leininger worked for me tremendously. It saved me money, aggravation and time. The mediation helped us come to an agreement without the usual hostility a divorce usually brings.

Mrs. D.L.

Bill's staff is professional and compassionate with all clients. If you're looking for good legal advice and not just what you want to hear, then you have come to the right Law Office of William J. Leininger.

Ms. A.B.

After speaking with several divorce attorneys, I decided to attend one of Bill's seminars. At the end of the seminar, there was no reason to look any further, my mind was made up. Bill was the right attorney for the job. Throughout my...

Ms. G.S.

Bill was the best! Through a difficult time he was a friend

Mrs. M.C.

I had the opportunity through my divorce process to watch Bill’s 30+ years of experience play out in the courtroom. Bill is truly a professional. Bill was, and is, only a phone call away. I’m completely satisfied with the services that...

Mr. C.C.

Mr. Leininger and his law firm did a wonderful job representing me in my efforts to gain full custody of my youngest daughter. I am so happy to say that my children are now all extremely happy, healthy and thriving. Thanks for putting...

Mr. A.L.

Our Staten Island Office

We are located in Suite 300 at 900 South Avenue. We have plenty of free parking.

900 South Ave
#300

Staten Island, NY 10314

Phone: 718-979-5200

Free 30 Min Zoom Consultation

What To Do Next

Alimony
When You Click the Red Button Below

You and your spouse will each receive a brief online questionnaire that takes less than five minutes to complete. Once both forms are submitted, we'll contact you to schedule a personalized consultation based on your responses.

Divorce
Explore Your Mediation Plan

During your online consultation, Mediator Leininger will explain the mediation process, discuss parenting, child support, alimony, and property division, and provide an estimate of the mediation fees.

Divorce
Get Your Questions Answered

Meet online via Zoom with William J. Leininger, Esq., Staten Island's first certified attorney divorce mediator, to have your questions answered

Frequently Asked Questions

What Is Divorce Mediation?
In divorce mediation, both spouses meet together with a neutral, impartial, trained professional mediator who helps them come to a mutually acceptable agreement on issues of parenting (child custody), division of marital assets and marital debts, child support, and alimony sometimes called spousal maintenance. Divorcing couples make decisions for themselves by directly communicating with one another in private and keeping control over their own divorce process.
How Is Divorce Mediation Different From Divorce Litigation?
Divorce mediation is a confidential, cooperative, non-adversarial process in which parties work together with a neutral mediator, attorney William J. Leininger, JD. to create a divorce agreement that is fair and equitable to both sides. In divorce mediation, the couple is usually in the same room discussing all the issues with one another and reaching decisions, which helps save time and money and improves post-divorce relationships. In divorce litigation in Court, each party discusses each issue with his/her own divorce attorney. The lawyers then speak with one another. Each lawyer gets back to his/her client for more feedback and the entire process repeats over and over about every issue. And there are many issues to address in a divorce!. This process can make divorce litigation take a very long time, get very expensive, and create a more combative relationship between the spouses. Studies show that children suffer more in a high conflict divorce – and that it is the level of conflict that affects the children negatively, not the divorce itself.
What Are Your Hours of Operation?
Our online Zoom mediation sessions are held 6 days a week, Monday through Saturday, between 11:00 a.m. and 8:00 p.m. The length of the divorce mediation process depends on the complexity of the issues in your particular case. Generally, divorcing couples have two to five 90-minute meetings with the divorce mediator, scheduled at your convenience, although Mr. Leininger has completed the Divorce Mediation process including the preparation of a 50-page Marital Settlement Agreement in as little as nine days when both parties were anxious to complete the mediation, despite having over two million dollars in assets!

Free 30 Min Zoom Consultation

Fill out the contact form or call us at 718-979-5200 to schedule your free 30 min consultation.

Zoom video conference available Monday-Saturday from 11 am and 8 pm. No need to take off from work!

Reach Out Today

We Accept the Following Credit Cards:

Visa LogoDiners Club LogoDiscover LogoMastercard LogoMaestro LogoStripe Logo