Call us: Phoenix: (602) 761-9798
Utah: (435) 586-9366 | Irvine, CA: (949) 529-2864
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KKOS Lawyers

Kyler Kohler Ostermiller & Sorensen, LLP (“KKOS Lawyers”) was founded by attorneys Chris Kyler and Mark Kohler in 2001. Today, KKOS Lawyers assists clients nationwide from offices in Arizona, California, and Utah.

Our firm handles business planning, estate planning, tax planning, self directed retirement planning and ERISA, securities law, litigation, government relations, and real estate.

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  • Top 10 Tax and Legal Mistakes by Entrepreneurs, By: Mark J. Kohler
  • Self Directed IRAs and Real Estate, By: Mat Sorensen

Mat’s Recent Blog Posts

The Self Directed IRA Handbook » Blog

SDIRA Handbook

I’m presently attending and speaking at the Retirement Industry Trust Association’s (RITA) confer...
Posted: March 24, 2015, 2:21 am
The IRS has some significant collection tools it can use to collect federal taxes. The IRS can li...
Posted: March 17, 2015, 5:34 am

Mark’s Recent Blog Posts

Mark J. Kohler » Blog

UniformAs many of you know, Leonard Nimoy passed away this past month and
Posted: March 17, 2015, 7:49 am
hidingProtecting your home from a lawsuit and protecting your identity from the public
Posted: March 10, 2015, 6:25 am


  • Working with Mat, and everyone on the Kyler Kohler Ostermiller & Sorensen team has been amazing. Not only has Matt assisted me with setting up entities, but I have also had the privilege of learning from him on advanced legal strategies in a college style classroom. Matt knows his stuff, and provides expert legal services for business owners and investors of all type.
    Christian Sadler
  • I was referred to Matt for help in setting up an IRA owned LLC. Matt and his team did an incredible job completing the work in a few short days. The process was professional, efficient and cost effective. I continue to rely on Matt for guidance running the LLC and related real estate matters. Not only is Matt a good lawyer, he runs a great office. It is easy for me to recommend Matt and his team.
    Richard Davis
  • Mat’s advice can be trusted. He is both knowledgeable about the impact of potential litigation and brings creativity to all that he does. It is enjoyable to work with him.
    Bill Carlson
  • I just wanted to drop a note and thank you and your staff for outstanding service on the work you have done for us! Any service organization is graded by their performance and your company is 2nd to none! Congratulations on operating such a respected company.
    Gary Hamilton
  • My wife and I recently sought Mat’s help with estate planning and couldn’t have been more satisfied. Mat’s professionalism, honesty, creativity and attention to detail is second to none. What impresses me the most about Mat can be summed up as “diverse”. Mat’s vast knowledge and experience in a plethora of differing areas of the law is astounding. I highly recommend Mat to my clients and friends seeking legal help.
    Kade Creamer
  • Wow, Mark is a top notch attorney/CPA. He has the knowledge of both so you know that when you are doing business with Mark you are getting the best advice for both areas. He is so fun to work with and he really makes legal and tax stuff fun and amazingly interesting (as if we ever thought that could be!!!!) I highly recommend Mark, and will continue to use him as my attorney and CPA going forward without any reservations.
    Orletha A.
  • Mat Sorensen is a highly qualified professional, skill in business creation and organization, estate planning, tax strategies, and using retirement plans to invest in alternative assets. I have hundreds of clients who have used Mat and his firm to represent them in complex transactions, as well as for my personal needs. His knowledge, experience, integrity and professionalism place Mat among the best attorneys that I have ever worked with.
    Jim Allfrey
  • Mark is an attorney/CPA who gets excited about legally, ethically and morally saving money on our taxes. He teaches us strategies that we can use TODAY to maximize our deductions and minimize taxes. He has produced amazing results, reviewing taxes and obtaining refunds based on taking deductions that other CPA’s missed. He is a family man with tremendous integrity and an expert in BOTH legal and tax matters. I definitely recommend Mark and his company for anyone!
    Cindy Logan
  • I have worked with Mark on multiple deals and have turned all my financial paperwork over to him. I have finally been able to sleep at night after tax season knowing that I have a trusted professional that will handle all my taxes both personally and for all my LLC’s. He is so easy to deal with and working with. Mark is like having that Angel on your shoulder. I’d be a mess without him!
    Dan Zitofsky
  • I have taken Mark’s classes and consulted with his firm in setting up my legal structures for running my business. I’ve gotten great advice that has saved me tons of money, time and worry. I highly recommend Mark and his firm!
    Sharon Wenger
  • I had a case field against me in Utah’s Fifth District Court that would have significantly impacted my business as well as me personally. I engaged Mathew Sorensen at KKOS Lawyers and he quickly went to work with the opposing counsel and outlined the legal issues and facts in the case and was able to get the case dismissed within about one month’s time. I would highly recommend Mat to anyone needing competent and effective representation.
    B. W.

Arizona Office

3033 N. Central Avenue, Ste 415
Phoenix, Arizona 85012
Phone: (602) 761-9798
Fax: (435) 586-9491

Corporate Office

1883 W. Royal Hunte Drive, Ste 200
Cedar City, Utah 84720
Phone: (435) 586-9366
Fax: (435) 586-9491

California Office

7700 Irvine Center Drive, Ste 800
Irvine, California 92618
Phone: (949) 529-2864
Fax: (435) 586-9491