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Jason J. Heinen is a 2011 graduate of Liberty University School of Law. He graduated magna cum laude, served as Chapter President of the Federalist Society, and held the position of Symposium Editor of the Liberty University Law Review. Prior to law school, he obtained a bachelor’s degree from the University of Wisconsin-Madison.
Jason began his career with a firm in Delafield, practicing law by day and volunteering with Lake Country Fire and Rescue by night. In 2016, he moved his practice to the Law Offices of Mark S. Knutson. While in Delafield and Brookfield, he was mentored by an experienced estate planner and corporate attorney while also handling several probate administrations and civil litigation matters.
He has advised numerous clients through the complexity of estate planning, trust and probate administrations, and various kinds of corporate transactions. He is mindful of the importance his clients place on the future of their family’s financial stability and security, while still wanting a plan that is simple and cost-effective.
Jason and his wife, Jean, live in Lisbon with their six children. In his spare time, he enjoys everything outdoors: hunting, fishing, camping, etc.
Jason’s passion is advocating and counseling individuals and business owners in the areas of:
Wills, Trusts, Powers of Attorney, and other Estate Planning
Probate Administration
Trust Administration
Residential and Commercial Real Estate Transactions
Corporate and Business Law
Adult Guardianship
He skillfully assists clients in navigating the legal system in a way that will help them protect their businesses and see that their families are provided for in the future.
4
Practice Areas
14 years
14 years
14 years
14 years
Free Consultation
$0 first 30 minutes
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Chat withState: Wisconsin
Acquired: 2011
No misconduct found
State: Minnesota
Acquired: 2012
No misconduct found
N16W23233 Stone Ridge Drive, Suite 260, Waukesha, WI, 53188
15 Client Reviews
Showing 1 - 5 of 15 reviews
Posted by Minh | March 18, 2022 | Hired Attorney | Real Estate
Jason exceeded all expectations. Grateful for his help.
I really enjoyed working with Jason on a rental property I sold back in 2020. He was professional, friendly and took the time and effort to make sure all our questions and requests were answered. His flat-rate fee was very affordable and covered all our needs. If I could give him 6 out of 5 stars I w...
Posted by Don | September 16, 2020 | Hired Attorney | Trusts
Jason Heinen is great to work with
We met with Jason in July of 2019 to discuss a possible revocable living trust. We wanted it done quickly due to an upcoming international trip, and Jason was excellent in meeting our needs. He was thorough in his explanations using easy to understand terms. He was there for us with quick responses t...
Posted by Michael | September 10, 2019 | Hired Attorney | Probate
Probate Attorney
When my father passed away, I was completely lost as to how the probate process worked. I did some searching and came across Jason Heinen. After my initial consultation, I absolutely knew I had picked the right person to handle my father's estate. Jason outlined the various probate options in Wi...
Posted by Mary | September 06, 2019 | Hired Attorney | Probate
Help during a stressful time
I’ve never had to deal with the death of a close relative until recently. Although there as a will we had no idea how to move forward. A friend recommended we contact Jason and it was the best advice we got during this extremely stressful time. Jason took his time explaining the probate process and m...
Posted by Jamie | September 05, 2019 | Hired Attorney | Wills & Living Wills
Living will
I had a living will done and Jason was very helpful . He answered all my questions and concerns . I would definitely recommend him .
"Jason is a great asset to his clients with a passion for doing high quality work. I strongly endorse him."
"Jason is very knowledgeable, responsive and easy to work with in Estate Planning, Probate and Real Estate matters. His first priority is to protect his clients' interests. I endorse this lawyer's work."
"Jason handles all our files where a client is looking to set up a will, trust, power of attorney, or business. He has helped hundreds of clients."
"Jason focuses on understanding his clients' estate planning goals and objectives. He then drafts estate plans to help them accomplish their goals and objectives."
"Jason is a very engaging and knowledgeable. I have worked with him on a number of matters over the past several years and have remained impressed. I highly recommend him."
"Jason is an excellent attorney. He is both knowledgeable and efficient. I refer cases to him with confidence."
Estate planning lawyer
Family lawyer
Litigation lawyer
Trademark application lawyer
Real estate lawyer
Litigation lawyer
2025
Rising Star, Super Lawyers
2024
Rising Star, Super Lawyers
2023
Rising Star, Super Lawyers
2022
Rising Star, Super Lawyers
2021
Rising Star, Super Lawyers
2020
Rising Star, Super Lawyers
2019
Rising Star, Super Lawyers
2018
Rising Star, Super Lawyers
2017
Rising Star, Super Lawyers
2011
National Appellate Advocacy Competition Regional Champion, American Bar Association
2025 - Present
Attorney, Heinen Law LLC
2016 - 2025
Attorney, Law Offices of Mark S. Knutson, S.C.
2015 - 2016
Attorney, J. Peterman Legal Group, Ltd
2011 - 2015
Attorney, Aul Law, LLC
2011 - Present
State Bar of WisconsinMember
2009 - Present
Federalist SocietyMember
2013 - 2014
Waukesha County Bar AssociationMember
2013 - 2015
Lake Country Fire & RescueFirefighter/EMT
2013 - 2014
Hartland-Lake Country RotaryMember
2012 - 2022
Friends of NashotahBoard Member
Real Estate Purchased
Judgment in-favor of Client
New Business Owner
2011
JD - Juris Doctor
2008
BA - Bachelor of Arts
2019
The Probate Process
2018
Special Needs Trusts (SNTs)
2015
Handling Real Estate after Death
2015
Basics of Estate Planning
2010
English
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