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Sean M. Sweeney

Litigation Attorney at Milwaukee, WI

5.0   3 reviews
  • Licensed for 16 years
    State WI
    Acquired 2007
    Status
    Good Standing No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Sean

Learn Sean’s areas of practice.

Attorney Sean M. Sweeney is a partner with Halling & Cayo, S.C. and has the requisite skills, education, and experience to help serve all of your legal needs in the Wauwatosa and Milwaukee area.

Sean earned his Juris Doctor (JD) and Masters of Business Administration (MBA) from Marquette University. He earned his Bachelor of Science degree in Business Economics from Northern Arizona University.

Before opening his own practice, Sean worked for the Milwaukee Bucks as a legal intern drafting and reviewing big dollar sponsorship deals. Sean has experience drafting contracts ranging from small business contracts to plow a parking lot to large corporation contracts dealing with operating and maintaining real estate.

Sean has not only the legal training and experience needed to provide complete service, he also has the education and training to understand the real world needs and challenges that organizations large and small face today.

Guardian Ad Litem's Office: While in Law School Sean worked for the Guardian Ad Litem's Office in the Children's Court. While there, he worked on cases involving Children in Need of Protective Services actions as well as Termination of Parental Rights actions. Sean also researched extensively and helped prepare for a Wisconsin Supreme Court case involving a Termination of Parental Rights action.

Milwaukee and Waukesha County Public Defenders Appointments: Tosa Law Office has represented clients as a Public Defender appointed Attorney in both Milwaukee and Waukesha counties. The public defenders office provides legal assistance to those people charged with a crime who do not have the means to pay for counsel on their own. Often times the Public Defenders Office is not able to adequately serve all of the people who need assistance, therefore attorneys such as Sean with Tosa Law Office take some of the surplus cases to help ease the burden on the often overtaxed public defenders office.

 

Big Brothers Big Sisters: Sean has been a Big Brother through the Big Brothers Big Sisters organization in Milwaukee since July of 2007. Sean has been placed with a little brother, Sema-j, Sema-j and Sean have had a lot of fun together and the experience has shown to be very rewarding for both Sean and Sema-j. As a personal recommendation, I would ask that anyone who has the time, (just a few hours a month) should sign up to be a big brother or big sister. I do not know of any other way to more significantly impact a young persons life than to simply take an interest and help teach them how to feel good about themselves and be successful in life. This request comes doubly for Men to be big brothers as there is always a shortage of Big Brothers vs. Big Sisters.

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Contact Sean

Similar lawyers nearby

Halling & Cayo SC
320 E. Buffalo St.
Suite 700
Milwaukee, WI, 53202-5837

Reviews

5.0 / 5.0
  3 customer reviews
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Posted by Jeffrey | December 27, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Outstanding Lawyer!
While it is unfortunate that I needed to engage counsel for an action against one of the major brokerage and investment banking firms, I am very fortunate to have been introduced to Sean Sweeney of Halling & Cayo. Simply stated, Sean is an outstanding attorney! Sean is smart, professional, methodical and tenacious, which is precisely what I need given the complexities of the case and who opposing counsel is. Additionally, unlike many litigators who come off as being aggressive and combative, Sean is soft spoken, reasonable and tempered. I do not doubt that he can flip the switch when and if he needs to, but his demeanor seems to be that of a deal maker with one eye towards settlement and the other towards trial, as opposed to others who might only want to fight, sometimes at the expense of their clients. I also appreciate how Sean has explained everything in detail and how he quickly responds to my questions. Although we are not yet finished, I am absolutely confident that Sean will resolve the situation favorably and timely and I look forward to seeing a positive outcome in the end. It is therefore with great pleasure and no reservations that I can highly recommend Sean Sweeney.
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Posted by GaryYvonne | November 17, 2012
Extremely Satisfied!!!!
Recently hired Sean to review a business contract. We were so impressed with how thorough Sean was. When he met with us to go over the contract, it was obvious he has some mad skills. I would have thought he spent a week studying the contract for how well he knew in it cover to cover. He didn't miss a beat! We later needed his assistance to amend parts of the contract, which he took care of that day, although he didn't think he would get to it until the next business day. His amendments were dead on with what we needed. We are so impressed with his knowledge and the kind & humble, yet confident way he handles himself. He has give us the best experience and service we could ever hope for in legal matters. We will continue doing business with Sean. So happy we had found you!! Thank you Sean!
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Posted by Denise | October 15, 2008
Mr & Mrs Kowalewski
Sean was extremely nice and helpful, went out of his way to meet at our home as well as at a coffee shop for our convenience. Yes I would hire this attorney again. We are pleased to assist you. We will gladly hire him for service in the future. God Bless America!

Cost

Rates
  • Retainer Sometimes
Payment methods
Cash, Check, Credit Card

Resume

AVVO RATING 10.0 (Superb)

Work Experience

  • Shareholder
  • Halling & Cayo, S.C.
  • 2013 - Present
  • Attorney
  • Halling & Cayo, S.C.
  • 2008 - 2013
  • Attorney
  • Tosa Law Office
  • 2007 - 2008
  • Legal Intern
  • Milwaukee Bucks
  • 2006 - 2006
View all work experience

Education

  • Marquette University
  • MBA - Master of Business Administration
  • 2007
  • Marquette University Law School
  • JD - Juris Doctor
  • 2007
  • William & Mary Law School
  • 2006
  • Loyola Law School, Loyola Marymount University
  • 2005
  • Northern Arizona University
  • BS - Bachelor of Science
  • 2004
  • Towson University
  • National Student Exchange Program
  • 2003
  • Seton Hill College
  • 2000
View all education

Legal Cases

  • Federal TILA Rescission and Fraud Case
  • Pending
  • Direct-TV Commercial License Dispute
  • Settled
  • Joint Venture Agreement
  • Successful Business Relationship
View all legal cases

Associations

  • Public Investors Arbitration Bar Association
  • PIABA Member
  • 2011 - Present
  • Milwaukee Bar Association
  • 2007 - Present
  • State Bar of Wisconsin
  • 2007 - Present
  • State Bar of Wisconsin, Litigation Section
  • 2007 - Present
  • State Bar of Wisconsin, Business Law Section
  • 2007 - Present
  • Wisconsin Solo and Small Conference
  • Co-Chair Technology Comittee
  • 2011 - 2012
  • Solo and Small Firm Conference Technology Committee
  • Member
  • 2010 - 2012
  • National Sports Law Institute
  • 2004 - 2012
View all associations

Languages Spoken

  • Spanish

Honors and Awards

  • Rising Star - Litigation
  • Super Lawyers
  • 2014
  • Leading Lawyers - Litigation
  • M: Milwaukee's Lifestyle Magazine
  • 2014
  • Leading Lawyers - Litigation
  • M: Milwaukee's Lifestyle Magazine
  • 2013
  • Rising Stars - Business Litigation
  • Super Lawyers
  • 2013
  • Up-and-Coming Lawyer
  • Wisconsin Law Journal
  • 2013
  • Leading Lawyers
  • Milwaukee Lifestyle Magazine
  • 2012
  • Rising Star
  • Super Lawyers
  • 2012
  • Rising Star
  • Super Lawyers
  • 2011
  • Thomas Moore Law Scholarship
  • Marquette University Law School
  • 2004
View all awards

Publications

View all publications

Speaking Engagements

  • Business Law - WCTC
  • Contract Law Basics
  • 2014
  • Lorman CLE
  • LLCs from a Litigator's Prospective - Avoiding Litigation
  • 2013
  • Lorman CLE
  • LLCs From a Litigator's Prospective - Resolving Litigation
  • 2013
  • Milwaukee Bar Association, Presents
  • Investment Fraud, from Wall Street to Main Street
  • 2012
  • Wisconsin Solo and Small Firm Conference
  • Hidden Gems in Adobe
  • 2011
  • Wisconsin Solo and Small Firm Conference
  • Ethics of Social Media
  • 2010
  • Wisconsin Bar Leaders Conference
  • Using Blogging as an effective communication tool
  • 2009
  • Negotiating the Transition from Law School to Practice
  • Solo-practice management.
  • 2008
View all speaking engagements

Attorney endorsements

Received (28)
Given (25)
Endorse Sean
Litigation Attorney | Mar 07
Relationship: Worked together on matter
"I strongly endorse Sean as a smart, effective, and diligent advocate for clients. He works tirelessly for clients and is always prepared."
Business Attorney | May 17
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Litigation Attorney | Feb 01
Relationship: Fellow lawyer in community
"I've enjoyed getting to know Sean over the last few weeks. Not only is he an excellent attorney, but his experience running his own practice helps him serve his business litigation clients exceptionally well."
Unknown Attorney | Aug 19
Relationship: Fellow lawyer in community
"I have known Attorney Sweeney for several years. I have always found him to be personable and highly knowledgeable of the legal issues in his field. I endorse this lawyer."
Contracts and agreements Attorney | Mar 30
Relationship: Fellow lawyer in community
"Attorney Sweeney cares about his cleints and the profession in general. I can recommend his work without reservation."
Litigation Attorney | Mar 22
Relationship: Fellow lawyer in community
"Attorney Sweeney and I belong to several national legal organizations together and I have learned a lot about legal strategy and client services from him."
Litigation Attorney | Mar 05
Relationship: Fellow lawyer in community
"I am familiar with Mr. Sweeney through his contributions to numerous national attorney group listservs. I have found his contributions thoughtful and knowledgeable."
Litigation Attorney | Feb 18
Relationship: Fellow lawyer in community
"I endorse Mr. Sweeney. We met on an attorney listserve and believe him to be a wealth of knowledge and dedicated to his practice and clients."
Business Attorney | Feb 17
Relationship: Fellow lawyer in community
"I endorse this lawyer's work."
Litigation Attorney | Feb 17
Relationship: Fellow lawyer in community
"I endorse Mr. Sweeney’s work. We met on various attorney list serves and I have always found him to be extremely helpful."
Litigation Attorney | Feb 17
Relationship: Fellow lawyer in community
"I have come to know Mr. Sweeney through attorney-to-attorney peer networks. I would not hesitate to refer clients to him."
Business Attorney | Feb 17
Relationship: Fellow lawyer in community
"I endorse this lawyer's work."
Business Attorney | Feb 17
Relationship: Fellow lawyer in community
"I endorse this lawyer's work. He is highly qualified."
Litigation Attorney | Feb 17
Relationship: Fellow lawyer in community
"I know Sean from multiple national list-serves Sean has always offered intelligent and helpful assistance with legal subjects that have aided my own practice of law. I endorse him and his practice."
Business Attorney | Nov 12
Relationship: Other
"I have gotten to know Mr. Sweeney's work through various nation-wide attorney list serves. He has earned a solid reputation through his informative posts and collaborative approach to problems."
Litigation Attorney | Nov 10
Relationship: Fellow lawyer in community
"Sean and I are both members of a national listserve for lawyers. Sean is a valuable member of the list, providing knowledgeable and professional advice and support for other members."
Business Attorney | Nov 03
Relationship: Fellow lawyer in community
"I know Sean through a list serve of the most cutting-edge attorneys, who are leveraging technology to produce better outcomes for their clients at affordable rates. Sean is always eager and able to provide helpful advice. If you are looking for a business law attorney in Milwaukee, you should hire Sean."
General practice Attorney | Oct 15
Relationship: Fellow lawyer in community
"Attorney Sweeney and I are members of the same national list-serve which strives to improve the practice of law. Sean is a thoughtful attorney and appears to be very service-oriented. He is educated and knowledgeable across a wide array of practice areas."
Business Attorney | Oct 15
Relationship: Fellow lawyer in community
"Sean is a good guy and great attorney. He's on top of his game as you can see from his blog and publications. I'm impressed with his recent article in the State Bar of Wisconsin's magazine, The Wisconsin Lawyer. All in all, I have confidence that my referrals to him will be well served."
Lawsuits and disputes Attorney | Oct 14
Relationship: Fellow lawyer in community
"Sean has demonstrated that he is smart, detail-oriented and easy to get along with. I endorse him and his work."
View more endorsements
Ethics and professional responsibility
Personal injury
Trademark application
Bankruptcy and debt
Social Security & Disability
Libel and slander
Personal injury
Debt collection
Bankruptcy and debt
Personal injury
DUI and DWI
Personal injury
Milwaukee Litigation Lawyer Sean M. Sweeney
Sean M. Sweeney
Litigation Attorney
Milwaukee, WI
Licensed for 16 years