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 1 - 2 of 2 reviews | Lawsuits & Disputes

Posted by Emily | January 12, 2017 | Hired Attorney

Divorce

Bill is a WONDERFUL lawyer, he came highly recommended and I'm glad he was my lawyer. He is very knowledgeable and helped me settle my case without going to trial. I cant say enough nice things about Bill and the staff at his office. Bill is a very fair, honest and professional lawyer and doesn't w...aste your time or money. I would hire him again in a heartbeat.

Posted by anonymous | June 09, 2014

Very Happy With My Choice

Bill and his staff handled my case with the utmost professionalism. I found him to be knowledgeable, and his expertise saved me thousands of dollars in potential settlement costs. Further, he also handled a very sensitive case with the highest degree of empathy, but with a matter-of-fact approach. ... Although I hope to never find myself in the situation where his services would be necessary, he will be my first phone call should it ever become necessary.

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
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution