Kathryn M. Lammers

Top rated family law attorney in Minnetonka, Minnesota

Heimerl & Lammers, LLC
Kathryn M. Lammers
Heimerl & Lammers, LLC

Practice Areas: Family law, Alternative dispute resolution, Appellate

Licensed in Minnesota since: 2006

Education: Hamline University School of Law

Selected to Super Lawyers: 2014 - 2023 Selected to Rising Stars: 2011 - 2012
Free Consultation

Heimerl & Lammers, LLC

11100 Wayzata Blvd
Minnetonka, MN 55305 Phone: 612-294-2200 Email: Kathryn M. Lammers Visit website


Since becoming licensed to practice law in 2006, Katie has amassed an impressive amount of experience in both the practice and the business of law.  Since joining the law firm of Heimerl and Lammers in 2009, she has built a dedicated family law practice with six family law attorneys and staff who assist a variety of family law clients each year.   

Katie's clients have described her as "knowledgeable", "excellent", and an "attorney who truly cares."  Her clients have lauded her for being calm and collected in court, and tough on the opposition.  

Katie has represented hundreds of clients in civil litigation cases in Minnesota, the majority of which have been in family law matters.   She has experience in virtually every aspect of the litigation process including appeals, jury trials, bench trials, summary judgment hearings, motion practice and ADR, including Early Neutral Evaluations.

Katie is a Fellow in the American Academy of Matrimonial Lawyers and is also a Board Certified Family Trial Advocate by the National Board of Trial Advocacy.  She is a rule 114 qualified neutral and a qualified family law mediator.  She is certified as an SENE and FENE mediator.  She has served on the Minneapolis Civil Rights Commission and is a volunteer for Tubman.  She also serves as a Ramsey County and Hennepin County volunteer mediator.  She is also a member of the Association of Family and Conciliation Courts, Hennepin County Bar Association, is on the Family Law Council as the publications co-chair with Minnesota Bar Association, and Douglas K Amdahl Inn of Court and is a former member of the Minnesota Association for Justice. She serves as a mentor attorney for the University of St. Thomas mentor program.  She has presented various CLEs at the Hennepin County Bar Association on the topics of bankruptcy and divorce and discovery issues, motion hearings and parenting plans.  She has authored articles on School Choice in Minnesota and Third Party Custody matters. 

Katie is on the bench and bar committee at the Hennepin County Bar Association working to bring the members of the bench in contact with members of the bar through education.  She also serves as a volunteer investigator on the 4th Judicial District Ethics Committee.  Katie is an advisory board member of the Adoption Medicine Clinic with at the University of Minnesota. 

Katie uses her leadership and interpersonal skills to handle a full range of family law concerns from custody and parenting time to the division of complex assets.  She believes that the practice of family law should be civil and treats all parties with respect even in the most acrimonious of disputes.  Katie handles hundreds of family law disputes annually.  She has received compliments from clients, the Court and opposing attorneys as to her professionalism and competency in handling family law cases.  

Katie has settled many cases using mediation or the ENE process and when cases can't settle, she has not hesitated to take cases to trial on a variety of legal issues including child custody modification, spousal maintenance, property division, parenting time and custody, and division of assets and debts. Katie also appears periodically before the Minnesota Court of Appeals and has argued the topics of child custody modification, child support, parenting time, spousal maintenance, domestic abuse and property division to the Appellate Court.  

Katie lives in Bloomington with her husband Mike and their two kids.  She enjoys biking, cooking and reading mystery novels. 


First Admitted: 2006, Minnesota

Professional Webpage: https://hllawfirm.com/attorney-profiles/kathryn-lammers/

Educational Background:
  • Arizona State University Hamline University School of Law
  • 2006
  • www.youtube.com/watch?feature=player_embedded&v=k26Ek0ep4-c
  • http://www.kare11.com/story/news/local/2015/01/02/divorce-day-lammers-january-2nd/21205739/  , Kare 11 Divorce Day, 2015
Representative Clients:
  • Sheid v. Scavezze, No. A11-931, 2012 WL 896383, at *1 (Minn. Ct. App. Mar. 19, 2012), 2012
  • Fanning v. Fanning, No. A21-0984, 2022 WL 3022371, at *1 (Minn. Ct. App. Aug. 1, 2022), 2022
  • Minder v. Negri, No. A19-2018, 2021 WL 79779, at *1 (Minn. Ct. App. Jan. 11, 2021), 2021
  • Thomas v. Thomas, No. A20-0836, 2021 WL 1525194, at *1 (Minn. Ct. App. Apr. 19, 2021), 2021
  • Omtvedt v. Jansen, No. A14-0418, 2015 WL 134015, at *1 (Minn. Ct. App. Jan. 12, 2015)- Briefed and Argued., 2015
  • In re Doe, No. A16-1392, 2017 WL 1375331, at *1 (Minn. Ct. App. Apr. 17, 2017)- Argued, Briefed with Assistance from others., 2017
  • Schmidt v. Schmidt 2015 WL 2468879- Ms. Lammers successfully represented her client on appeal of issues regarding child-support obligations, dividing marital property, and granting attorney fees. 
  • Graybow v. Graybow  2014 WL 103424, 1 (Minn.App.) (Minn.App.,2014), 2014
Bar/Professional Activity:
  • Minnesota State Bar Association- Family Law Council Member- Publications Co-Chair, 2020
  • Parenting Plan 2022 Update- draft and update existing parenting plan with updated issues, caselaw and language.  Presented updated parenting plan at the 2022 Family Law Institute.  , 2022
  • Board Certified Family Trial Advocate, National Board of Trial Advocacy, 2021
  • Fellow, American Academy of Matrimonial Lawyers, 2020
  • Minnesota Family Law Institute (2020)Attorney and Judicial Insights on Temporary Motions, 2020
  • School Choice- A Focus on the Child as a Learner.  With Fleming Education Group. , 2017
  • HCBA CLE presentation, "The New Divorce" , 2012
  • Pracitcing Law with Your Spouse- Minn Cle, 2017
  • Association of Family and Conciliation Courts, 2011
  • District Ethics Committe Investigator- Hennepin County , 2017
  • Amdahl Inn of Court, 2008
  • Minnesota Association for Justice, 2012
  • HCBA CLE presentation the "Do's and Don'ts of Family Law Discovery" panel discussion presenter, 2014
  • Guest Speaker at Mitchell Hamline Capstone Week: Family Law and Tax, 2018
  • University of St. Thomas Mentor, 2010
  • Hennepin County Bar Association- Bench and Bar Committee, 2013
  • Minnesota Family Law Institute- Paralegal Track "Best Practices for Effective and Efficient Client Intake", 2018
Special Licenses/Certifications:
  • Board Certified Family Trial Advocate, National Board of Trial Advocacy, 2021
  • Fellow of American Academy of Matrimonial Lawyers   Katie Lammers, of Heimerl & Lammers, was named Fellow of American Academy of Matrimonial Lawyers. Katie is now a part of AAML, a leading organization for family law attorneys that excel in their field. Katie worked long hours and passed rigorous exams to gain this position. Her dedication and experience has earned her this recognition as well as credibility within the community. She is now one of only 45 family law attorneys in the Minnesota Chapter. , 2020
  • SENE and FENE Certified, 2013
  • Rule 114 Qualified Neutral, 2011
Other Outstanding Achievements:
  • Board Certified Family Trial Advocate, National Board of Trial Advocacy, 2021
  • Fellow, American Academy of Matrimonial Lawyers , 2020
Scholarly Lectures/Writings:
  • For practicing attorneys, this parenting plan provides sample scenarios, language and case law to assist in drafting parenting plans.  , Author, Parenting Plan Update, MinnCle, Family Law, Divorce, 2022
  • Trying Your First Third Party Custody Case (2012)Minnesota State Bar Association- Family Law Forum   Summary of how to prepare for and try a third party custody case- from intake, to pleadings to trial, 2012
  • Practical and substantive advice on presenting temporary and emergency motions in family law cases., Co-Presented, JUDICIAL AND ATTORNEY INSIGHTS ON EMERGENCY MOTIONS, Minn. Cle , Family Lawyers, 2020
  • Working with Difficult Opposing Counsel from the Perspective of Young Attorneys (2009)Minnesota State Bar Association- Family Law Forum   Tips for new attorneys on dealing with difficult clients and opposing counsel
  • Determining where a child will attend school for separated or divorced parents can be overwhelming. When parents share joint legal custody, they are required to make educational decisions together as co-parents. However, as family law professionals, we often see parties engage in high conflict, unilateral decision-making, and ulterior motives when it comes to deciding school choice related issues for their minor children. Rather than staying child-centered in these decisions, parents are often focused much more on their own needs in the process.  How then should we as family law professionals better approach school choice related issues? This article, co-authored with Amanda Crain and Katie Lammers of Heimerl & Lammers LLC, discusses the faults in the current approach to school choice, how this impacts children, and considers when and how school choice should be addressed when parents cannot or will not agree., Co-Author, School Choice: A Focus on the Child as a Learner, 2017
  • Selected by Peers.  , SuperLawyers, SuperLawyers, 2022
  • Selected by Peers.  , SuperLawyers- Top 100: 2022 Minnesota Super Lawyers , SuperLawyers, 2022
  • Selected by Peers , SuperLawyers- Top 50 Women Attorneys, SuperLawyers, 2022
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  • , SuperLawyers, SuperLawyers, 2021
  • , SuperLawyers- Top 50 Women Attorneys, SuperLawyers, 2021
  • , Super Lawyer- Top Women Attorneys, Super Lawyers, 2019
  • , Super Lawyer- Top 50 Women Attorneys in Minnesota, Super Lawyers, 2020
  • , Super Lawyer, Super Lawyers, 2018
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  • , Super Lawyer, Super Lawyers, 2015
  • , Super Lawyer, Super Lawyers, 2017
  • , Super Lawyer, Super Lawyers, 2014
  • , Super Lawyer, Super Lawyers, 2015
  • , Rising Stars, Super Lawyers, 2012
  • , Rising Stars, Super Lawyers , 2011
Pro bono/Community Service:
  • University of St. Thomas School of Law Volunteer Mentor  , 2022
  • Volunteer Attorney with Children's Law Center, 2020
  • Co- Chaired a fundraiser event with Haus Salon with proceeds to benefit Tubman.  , 2017
  • Helping our Heros- Estate Planning for First Responders, 2020
  • Volunteer Mediator Ramsey and Hennepin County, 2012
  • Tubman Vulunteer, 2009
  • Advisory board member- U of M Adoption Medicine Clinic, 2017
Industry Groups:
  • Appeals
  • Cooperative Practice
  • Family Law
  • Mediation

Office location for Kathryn M. Lammers

11100 Wayzata Blvd
Minnetonka, MN 55305


10 Years Super Lawyers
2 Years Rising Stars
  • Super Lawyers: 2014 - 2023
  • Rising Stars: 2011 - 2012

Top lists

Top 100: Minnesota Super Lawyers: 2022 - 2023 Top 50: Women Minnesota Super Lawyers: 2020 - 2023

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