Sean M. Sweeney
About Sean
Biography
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.
Practice Areas
Fees and Rates
Cost
Sometimes
Payment Methods
- Cash
- Check
- Credit Card
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Chat withLicenses
Licensed in Wisconsin for 18 years
State: Wisconsin
Acquired: 2007
No misconduct found
Location
Halling & Cayo SC
320 E. Buffalo St., Suite 700, Milwaukee, WI, 53202-5837
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Sean M. Sweeney's Reviews
Showing 1 - 3 of 3 client reviews from Avvo
Posted by Jeffrey | December 27, 2021 | 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, method...
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 ...
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!
Sean M. Sweeney's Lawyer Endorsements
"I strongly endorse Sean as a smart, effective, and diligent advocate for clients. He works tirelessly for clients and is always prepared."
"I endorse this lawyer."
"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."
"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."
"Attorney Sweeney cares about his cleints and the profession in general. I can recommend his work without reservation."
"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."
"I am familiar with Mr. Sweeney through his contributions to numerous national attorney group listservs. I have found his contributions thoughtful and knowledgeable."
"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."
"I endorse this lawyer's work."
"I endorse Mr. Sweeney’s work. We met on various attorney list serves and I have always found him to be extremely helpful."
"I have come to know Mr. Sweeney through attorney-to-attorney peer networks. I would not hesitate to refer clients to him."
"I endorse this lawyer's work."
"I endorse this lawyer's work. He is highly qualified."
"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."
"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."
"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."
"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."
"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."
"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."
"Sean has demonstrated that he is smart, detail-oriented and easy to get along with. I endorse him and his work."
Ethics and professional responsibility lawyer
Family lawyer
Business lawyer
Appeals lawyer
Business lawyer
Personal injury lawyer
Trademark application lawyer
Bankruptcy and debt lawyer
Social Security & Disability lawyer
Family lawyer
Business lawyer
Libel and slander lawyer
Personal injury lawyer
Debt collection lawyer
Bankruptcy and debt lawyer
Business lawyer
Personal injury lawyer
DUI and DWI lawyer
DUI and DWI lawyer
Personal injury lawyer
Experience
Honors
2014
Rising Star - Litigation, Super Lawyers
2014
Leading Lawyers - Litigation, M: Milwaukee's Lifestyle Magazine
2013
Leading Lawyers - Litigation, M: Milwaukee's Lifestyle Magazine
2013
Rising Stars - Business Litigation, Super Lawyers
2013
Up-and-Coming Lawyer, Wisconsin Law Journal
2012
Leading Lawyers, Milwaukee Lifestyle Magazine
2012
Rising Star, Super Lawyers
2011
Rising Star, Super Lawyers
2004
Thomas Moore Law Scholarship, Marquette University Law School
Work Experience
2013 - Present
Shareholder, Halling & Cayo, S.C.
2008 - 2013
Attorney, Halling & Cayo, S.C.
2007 - 2008
Attorney, Tosa Law Office
2006 - 2006
Legal Intern, Milwaukee Bucks
Associations
2011 - Present
Public Investors Arbitration Bar AssociationPIABA Member
2007 - 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
2011 - 2012
Wisconsin Solo and Small ConferenceCo-Chair Technology Comittee
2010 - 2012
Solo and Small Firm Conference Technology CommitteeMember
2004 - 2012
National Sports Law Institute
Sample of Legal Cases
Pending
Settled
Successful Business Relationship
Pending
Education
2007
JD - Juris Doctor
2007
MBA - Master of Business Administration
2006
2005
2004
BS - Bachelor of Science
2003
National Student Exchange Program
2000
Speaking Engagements
2014
Contract Law Basics
2013
LLCs From a Litigator's Prospective - Resolving Litigation
2013
LLCs from a Litigator's Prospective - Avoiding Litigation
2012
2012
Investment Fraud, from Wall Street to Main Street
2011
Hidden Gems in Adobe
2010
Ethics of Social Media
2009
Using Blogging as an effective communication tool
2008
Solo-practice management.
Publications
2011
2011
2011
2011
2010
2010
2008
2008
2008
2008
Languages
Spanish
Activity
Legal Answers
Legal Answers
How long do I have to file a counterclaim, if I didnt do so when I filed my answer to the complaint?
15 Oct 2013
Is a verbal agreement enforceable in Wisconsin
26 Oct 2008
CA contract law, service/vendor contract, business was purchased by another company is my contract still valid
25 Sep 2008