Atty. Gregory S. Mager

Atty. Gregory S. Mager

Gregory assists his clients with family law matters. He is recognized by judges and peers as one of Wisconsin’s premier family law attorneys.

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Profile Summary

About Gregory S. Mager at a glance

Gregory S. Mager is a family law attorney based in Bayside, Wisconsin, practicing at Mager Family Law LLC. Admitted to practice in Wisconsin, State Bar of Wisconsin. Educated at Marquette University (JD, 1997) and Marquette University (MA, 1994). Recognitions include Best Lawyers in America — Family Law (2026), Best Lawyers in America — Awards: (2026), and Best Lawyers in America — Fellow, American Academy of Matrimonial Lawyers (2012–). (2026). Serands clients in Bayside, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Gregory assists his clients with family law matters
  • He is recognized by judges and peers as one of Wisconsin’s premier family law attorneys
  • He uses his extensive skill, training, and experience to help his clients achieve successful resolutions of their divorce, paternity, custody, placement, and support matters
  • Gregory is a Fellow in the American Academy of Matrimonial Lawyers and a Board Certified Family Law Trial Advocate by the National Board of Trial Advocacy
  • He is uniquely positioned to successfully represent clients in their family law matters, including those involving complex business, financial, and child related issues

Practice Areas Explained

Gregory S. Mager's Areas of Practice

Each practice area below reflects the types of cases Gregory S. Mager handles, with a brief overview of what that area of law covers.

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Gregory S. Mager is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

Practicing law in Wisconsin. Legal matters in Wisconsin are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Bayside are typically filed in the local municipal court or the appropriate Wisconsin state district court, depending on subject matter and amount in controversy. An attorney licensed in Wisconsin brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Wisconsin courts without local counsel or pro hac vice admission.

Looking for additional Wisconsin attorneys? Browse all attorneys in Bayside or all attorneys in Wisconsin.

Frequently Asked

Common questions about Gregory S. Mager

Where is Gregory S. Mager's law office located?
Gregory S. Mager's law practice is located in Bayside, Wisconsin. The firm is Mager Family Law LLC. You can contact the office directly through this profile page.
What practice areas does Gregory S. Mager handle?
Gregory S. Mager focuses on family law. Each practice area listed reflects experience handling cases of that type in Wisconsin.
Where did Gregory S. Mager go to law school?
Gregory S. Mager earned their education at (JD, 1997); (MA, 1994); (BA, 1992).
How can I contact Gregory S. Mager for a consultation?
You can contact Gregory S. Mager directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Gregory S. Mager received?
Gregory S. Mager's notable recognition includes: Best Lawyers in America — Family Law; Best Lawyers in America — Awards:; Best Lawyers in America — Fellow, American Academy of Matrimonial Lawyers (2012–).; Best Lawyers in America — Selected for inclusion in Wisconsin Super Lawyers, Law & Politics and Milwaukee Magazine, 2013–2022.; Best Lawyers in America — Selected for inclusion in The Best Lawyers in America–Family Law in 2016 –2023..

Practice Areas

Education

JD
Marquette University
- 1997
MA
Marquette University
- 1994
BA
Marquette University
- 1992

Awards

Best Lawyers in America — Family Law
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Fellow, American Academy of Matrimonial Lawyers (2012–).
- 2026
Best Lawyers in America — Selected for inclusion in Wisconsin Super Lawyers, Law & Politics and Milwaukee Magazine, 2013–2022.
- 2026
Best Lawyers in America — Selected for inclusion in The Best Lawyers in America–Family Law in 2016 –2023.
- 2026

Bar Admissions

Wisconsin, State Bar of Wisconsin

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