Overall Rating
This is an aggregated review score of Avvo and Lawyers.com reviews.
This is an aggregated review score of Avvo and Lawyers.com reviews.
5.0 /5.0
252 Client Reviews
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Marcus N Seiter
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About Marcus
Biography
I am passionate about helping people formulate plans to reach their goals. Since 1999, I have been involved in that process with hundreds of clients as a professional in the financial services industry. In 2011, I enrolled at Arizona Summit Law School. It wasn’t always easy balancing family and school while maintaining a growing financial services company. But with the help of my wife and others, along with some divine intervention, I graduated with honors (summa cum laude) in 2014. The rest is history. Now I spend my time helping individuals and families create and maintain solid estate plans – truly an important work!
On a more personal note:
Before becoming an attorney, I grew up in Scottsdale, went to Horizon High School, and then joined the United States Marine Corps Reserves. Following my active duty training, I went on a 2 year mission for the Church of Jesus Christ of Latter-day Saints and later graduated from Arizona State University – go Sun Devils! Along the way I moved to Mesa where I met my sweetheart – Jennifer. We were married in 1999 and have since been blessed with 6 children (4 boys & 2 girls)! So when I’m not at work, I’m usually playing with my family, fixing up the house, or playing basketball.
Protect your loved ones & safeguard your legacy - contact Seiter Law for a FREE consultation!
Protect your loved ones & safeguard your legacy - contact Seiter Law for a FREE consultation!
Protect your loved ones & safeguard your legacy - contact Seiter Law for a FREE consultation!
Protect your loved ones & safeguard your legacy - contact Seiter Law for a FREE consultation!
Protect your loved ones & safeguard your legacy - contact Seiter Law for a FREE consultation!
Practice Areas
4
Practice Areas
Estate Planning
35%
Trusts
30%
Wills and Living Wills
20%
Power of Attorney
15%
Fees and Rates
Cost
Payment Methods
- Cash
- Check
- Credit Card
Awards
2026 2025 2024
...
+
9
Licenses
Licensed in Arizona for 10 years
State: Arizona
Acquired: 2015
No misconduct found
Location
Gallery
Online Presence
Other places you can find Marcus online.
Marcus N Seiter's Reviews
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Practice Areas
What Clients Mention
Showing 1 - 5 of 29 reviews | Responsiveness
Posted by Della | March 14, 2026 | Hired Attorney
Great for estate planning
I had an outstanding experience with Marcus. He helped me update my trust and took the time to address all of the details I had. I asked him to make additional changes several times and he always did so quickly. He explained everything in a way that was easy to understand and the process was painless...
Posted by anonymous | January 03, 2026 | Hired Attorney | Estate Planning
Excellent Experience Creating Our Family Trust and Will
We had a wonderful experience working with Seiter Law, PLLC to create our family trust and will. From start to finish, the entire process was handled with care, clarity, and professionalism. Estate planning can feel overwhelming, but they were incredibly patient and took the time to explain every ...
Posted by Kathy | August 28, 2025 | Hired Attorney | Trusts
Definitely 5 Star
Marcus is very thorough and knowledgeable, with excellent follow-up. Great office staff. And patient!! I have worked with Marcus since 2017, both as a trustee and to keep our family trusts updated.
Posted by Christol | May 15, 2025 | Hired Attorney | Estate Planning
Exceptional Experience
I had an exceptional experience working with Seiter Law during my family’s estate planning process, which included the creation of a revocable trust and will. Marcus Seiter demonstrated a notable depth of expertise, coupled with a poised and highly professional demeanor. I especially admired his quic...
Posted by Martin | May 02, 2025 | Hired Attorney | Estate Planning
Very informative process
I enjoyed very much working with Seiter Law. Marcus listened to my concerns, answered all of my questions, and explained everything in layman's English, rather than "legalese." He was thorough, detail oriented, and didn't reinvent the wheel as he was updating all of my Will, trusts, etc. to com...
Marcus N Seiter's Lawyer Endorsements
"I have had the opportunity to sit with Marcus and discuss his practice and his approach to estate planning. I found him to be very thoughtful and deliberate in the way in which he strives to assist his clients. He is down to earth and I would have no hesitation in referring clients to him."
"I have had the opportunity to spend years observing Mr. Seiter. His commitment and dedication to his clients is exceptional. He truly and deeply cares for every person he has contact with. Mr. Seiter, "Marcus," has gained my absolute trust and, I can assure you, the trust of many more attorneys. Mr. Seiter is rare breed of attorney that you can have complete confidence in. I recommend and endorse this lawyer."
"I've had the opportunity to get to know Mr. Seiter and have been very impressed with his integrity and his personable attention to others. I would most certainly recommend his services."
"Marcus is a thoughtful and thorough attorney. I have been impressed by his dedication to his field and his clients. You will not be better served by anyone else in the estate-planning field. I highly recommend and endorse Marcus."
"I highly recommend Marcus for your Estate Planning needs. Marcus is skilled at analyzing his clients' issues and determining the best course of action to maximize the benefits to his clients. Marcus is a talented attorney who can handle complex legal issues and clearly communicate those issues with his clients."
"Marcus is a conscientious attorney with a really strong financial background. I endorse this lawyer."
"Marcus is a fine lawyer and an even better person. I have had opportunities to discuss estate planning matters with him. He is sharp and knowledgeable."
"I endorse this lawyer for your estate planning needs. He is very dedicated to his clients and always working to do increase his knowledge on the many issues that can come up during estate planning."
"I endorse this lawyer."
"I endorse this lawyer. I know Marcus to be an honest and fair attorney. His ethics and values are above par."
"I endorse Mr. Seiter because of the excellent attention to detail he provides to his clients."
"I endorse this lawyer. I knew Marcus in law school and was always impressed with his conscientious analysis. Now, as a lawyer, I endorse him because of his prior expertise and because I know he always strives to do what's best for his clients."
"I endorse this lawyer."
"I recently met Marcus. He is an intelligent and caring attorney. He is very interested in continually expanding his knowledge in the field. He also brings his financial services background into his understanding and planning for his clients. All to their benefit."
"Marcus is a caring and effective advocate and he truly has the best interests of his clients at heart. He is trustworthy and willing to go the extra mile. I endorse this lawyer."
"Marcus is a thoughtful and detail oriented attorney. He takes great care in creating a customized estate plan for his clients. His financial background is of tremendous benefit as he works through his recommendations and helps his clients feel very comfortable with his services."
"Super smart guy! I endorse him wholeheartedly."
David Spilsbury
Financial markets and services lawyer | Aug 16
Relationship: Fellow lawyer in community
"Marcus has the highest level of personal integrity and many years of investment experience. If you need help with estate planning or other financial services I recommend Marcus to you without qualification."
"I endorse this lawyer."
Frankie Adamo
Contracts and agreements lawyer
Kyle Sherman
Family lawyer
Ian Hasegawa
Probate lawyer
Terry Hales
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John Carter
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Experience
Honors
2025
Rising Star, Super Lawyers
2024
Rising Star, Super Lawyers
2024
Peer Review Rated, Martindale-Hubbell
2023
Rising Star, Super Lawyers
2022
Rising Star, Super Lawyers
2021
Rising Star, Super Lawyers
2020
Clients' Choice, Avvo
2020
Client Champion, Martindale-Hubbell®
2019
Clients' Choice, Avvo
2019
Client Champion, Martindale-Hubbell®
2018
Client Champion, Martindale-Hubbell®
2018
Clients' Choice, Avvo
2017
Clients' Choice, Avvo
2016
Clients' Choice - Estate Planning, Avvo
2015
Clients' Choice - Estate Planning, Avvo
2014
Order of the Quill, Arizona Summit Law School
1994
Distinguished Honor Graduate, United States Marine Corps
1993
Eagle Scout, Boy Scouts of America
Work Experience
2015 - Present
Attorney, Seiter Law, PLLC
1999 - Present
Professional, Financial Services Industry
Associations
2016 - Present
State Bar of Arizona, Religious Liberty SectionMember
2015 - Present
State Bar of ArizonaMember
2015 - Present
Maricopa County Bar AssociationMember
2015 - Present
American Bar AssociationMember
2015 - Present
State Bar of Arizona, Probate and Trust Law SectionMember
2015 - Present
State Bar of Arizona, Sole Practitioner/Small Firm SectionMember
2016 - 2019
Boy Scouts of AmericaLeader
2015 - 2015
Financial Planning AssociationDirector
Sample of Legal Cases
Declaration of Death
Declaratory Relief was granted.
Education
2014
Arizona Summit Law School
JD - Juris Doctor
2010
Arizona State University
BIS - Bachelor of Interdisciplinary Studies
Speaking Engagements
2021
Making Sense of Wills, Trusts, Probate and Incapacity
Estate Planning and Administration
2019
American Mensa Annual Conference
Trust, Wills, Probate and Incapacity
2018
Estate Planning - Making Sense of Wills, Trusts, Probate and Incapacity
Living Trusts
2018
Estate Planning
Estate Planning
2018
Beyond the Dorm: Essentials for College Bound Teens
3 Docs Every College Student Needs
2017
MCC Campus
Estate Planning
2016
New Frontiers for Lifelong Learning
Estate Planning - Making Sense of Wills, Trusts, Probate, and Incapacity
Publications
2021
www.seiterlawpllc.com
9 Reasons to Update Your Estate Plan
2018
Seiter Law Blog
The Opioid Epidemic: Using Targeted Trusts
2017
Seiter Law Blog
Probate Series (Part 2): 3 Common Ways to Avoid It
2017
Seiter Law Blog
Probate Series (Part 1): What is Probate
2016
The Suit Magazine
Ensuring Estate Documents Are Close At Hand
Languages
English
Activity
Legal Answers
Legal Guides
Legal Answers
Q&A
My Brother passed away and did not leave a will can I fill out informal Probate form, so t closes out his bank account?
14 Apr 2025
Q&A
Do I have to completely restate my living trust if original date trust was signed on deed was not included on restated trust?
27 Jan 2025
Q&A
Do I establish a revocable living trust in Arizona, Hawaii or both?
13 Jan 2025