William J. Hammett

PRO

William J. Hammett

5.0
Rating: 10.0

Licensed for 37 years

Divorce and separation Lawyer at Neenah, WI
Practice Areas: Divorce & Separation, Child Custody, Alimony ... +2 more

675 Deerwood Ave, Neenah, WI

Virtual Consultation Available

About William

Reviewers Often Mention

Based on insights from 29 Avvo reviews of this attorney.

Recommendation

Case Results

Professionalism

Advocacy

Biography

Attorney William J. Hammett is a founding member and partner with Hammett, Bellin & Oswald, LLC. Established in 1997, the law firm has offices in Neenah and Appleton, Wisconsin. Serving clients throughout the Fox Valley region and surrounding areas.

Practice Areas

5

Practice Areas

Divorce and Separation 35%

Contested and Uncontested divorces

35%
Child Custody 25%

Child custody and child support

25%
Alimony 20%

20%
Adoption 10%

10%
Family 10%

For approximately the last 20 years I have limited my practice to the areas of divorce, paternity actions, custody and placement disputes, support issues, and termination of parental rights and adoption actions.

12 years

10%

Fees and Rates

Cost

Retainer

Always


Payment Methods

  • Cash
  • Check
  • Credit Card

Awards

Client's Choice
Client's Choice
2017 2015
Distinguished Peer Review Rating
Super Lawyer

Licenses

Licensed in Wisconsin for 37 years

State: Wisconsin

Acquired: 1989

Good Standing

No misconduct found

Location

Hammett Bellin & Oswald LLC

675 Deerwood Ave, Neenah, WI, 54956-1629

hbolawfirm.com/

Hammett, Bellin, & Oswald, LLC

4650 West Spencer Street, Appleton, WI, 54913

hbolawfirm.com/

William J. Hammett's Reviews

Avvo Review Score

5.0 /5.0

29 Client Reviews


Client Insights

Avvo uses AI to summarize reviews left for lawyers, providing a helpful overview of overall sentiment. Each summary is based on up to 500 of the most recent reviews and is refreshed upon submission of each new review. The number of reviews used may be displayed.

AI-summarized from Avvo client reviews

Reviewers overwhelmingly praise the lawyer for their professionalism, deep knowledge of family law, and compassionate approach during difficult divorce and custody proceedings. Clients frequently highlight the lawyer's clear communication, fair billing, and supportive staff, noting that they felt well-represented and achieved favorable, equitable outcomes.

Filter Avvo Reviews (29) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 6 - 9 of 9 reviews | Practice Area Knowledge

Posted by anonymous | December 16, 2015 | Hired Attorney

Outstanding divorce attorney!

Before hiring an attorney, I thoroughly investigated all divorce lawyers within a 100-mile radius of Green Bay. My intention was to hire someone with expertise and experience specific to divorce law. To my surprise, I found someone in close proximity who has an outstanding reputation. Attorney Wil...liam J Hammett with HBO law offices was selected to “Super Lawyers” from 2008-2015 as one of the top divorce and family law attorneys in the State of WI and, upon reading his clients’ reviews, I knew I wanted him to represent me. Bill’s vast knowledge of divorce law put me at ease almost immediately. Personally, I can attest to his honesty and integrity as a law professional. Many details of this process were initially quite overwhelming. Bill could sense my frustration and patiently answered ALL of my questions; my concerns and worries were quickly alleviated. What impressed me most was the step-by-step approach he used to convey the divorce process in terms I could understand. His actions and personality were highly professional both in and out of the courtroom. I have a great deal of respect for Attorney Hammett and am very satisfied with the outcome of my divorce. His legal assistant, Ellen, was absolutely wonderful too.

Posted by anonymous | June 10, 2015

Attorney Hammett is very a wise choice when you are choosing a divorce attorney.

I am a current client of Attorney Hammett. I cannot say enough positive comments about Attorney Hammett, Ellen and Miranda, both of them work with him. If I ever have a question, concern or how to handle a situation, I know that I can always email or call. This type commitment is especially nice t...o have when the divorce process can be difficult. Attorney Hammett and his staff understand that divorce not only effects you, but your children. The staff is professional, knowledgeable, understanding, honest and trustworthy. I would recommend Attorney Hammett to anyone and I already have.

Posted by Sarah | June 10, 2015

Divorce

Bill was knowledgeable and handled my divorce well. He has a nice personality and easy to speak to.

Posted by anonymous | October 27, 2014

Great Attorney

Helped us through a grueling adoption. Very firm and aggressive and honest with client. I would recommend him to anyone going through any family law and/or divorce matters. We looked for months for an attorney, and very impressed/happy with choice.

See All Client Reviews

William J. Hammett's Lawyer Endorsements

Endorse William
Natalie M. Sturicz headshot
Natalie Sturicz

Family lawyer | Jun 11

Relationship: Worked for lawyer

"I endorse this lawyer. I have worked with Bill for over five years. He is not only experienced in family law but skilled and driven to achieve the best possible results for his clients. He is among the best attorneys in Wisconsin practicing family law."

Jeffrey Thomas Oswald headshot
Jeffrey Oswald

Divorce and separation lawyer | Feb 12

Relationship: Co-worker

"I endorse this lawyer. Bill is one of the best divorce attorneys in the entire state. He has the skill, legal knowledge, and trial skills that are second to none."

Jeffrey P. Kippa headshot
Jeffrey Kippa

Family lawyer | Sep 25

Relationship: Fellow lawyer in community

"Bill's knowledge of the law, coupled with his dedication to his clients, make him one of the best family law attorneys in the state."

View All Endorsements
Natalie M. Sturicz headshot
Natalie Sturicz

Family lawyer

Jeffrey Thomas Oswald headshot
Jeffrey Oswald

Criminal defense lawyer

Experience

Rating:  10.0 (Superb)

Honors

2026

Super Lawyer, Super Lawyers

2025

Super Lawyer, Super Lawyers

2024

Super Lawyer, Super Lawyers

2023

Super Lawyer, Super Lawyers

2022

Super Lawyer, Super Lawyers

2021

Super Lawyer, Super Lawyers

2021

Super Lawyer, Super Lawyers

2020

Super Lawyer, Super Lawyers

2020

Super Lawyer, Super Lawyers

2019

Super Lawyer, Super Lawyers

2019

Super Lawyer, Super Lawyers

2018

Super Lawyer, Super Lawyers

2017

Super Lawyer, Super Lawyers

2016

Super Lawyer, Super Lawyers

2016

BV Rated, Martindale-Hubbell

2016

Super Lawyer, Super Lawyers

2015

Super Lawyer, Super Lawyers

2015

Super Lawyer, Super Lawyers

2014

Super Lawyer, Super Lawyers

2014

Super Lawyer, Super Lawyers

2013

Super Lawyer, Super Lawyers

2013

Super Lawyer, Super Lawyers

2012

Super Lawyer, Super Lawyers

2012

Super Lawyer, Super Lawyers

2011

Super Lawyer, Super Lawyers

2011

Super Lawyer, Super Lawyers

2010

Super Lawyer, Super Lawyers

2010

Super Lawyer, Super Lawyers

2009

Super Lawyer, Super Lawyers

2009

Super Lawyer, Super Lawyers

2008

Super Lawyer, Super Lawyers

2008

Super Lawyer, Super Lawyers

Work Experience

1997 - Present

Partner, Hammett, Bellin, & Oswald, LLC

1991 - 1997

Managing Partner, Hammett Law Office

1989 - 1991

Associate, O'Neil, Cannon & Hollman

Associations

1991 - Present

Winnebago County Bar Association

Member

1989 - Present

State Bar of Wisconsin

Member

1997 - 1998

Winnebago County Bar Association

President

Education

1989

Marquette University Law School

JD - Juris Doctor

1986

University of Wisconsin, Madison

BA - Bachelor of Arts

Publications

1989

Marquette Law Review, Vol 72/ No.4 "Percentage Leases" Is There a Need to Imply a Covenant of Continuous Operation

Languages

English

Avvo Rating

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Avvo Rating Levels
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