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Mortensen & Reinheimer, PC Mortensen & Reinheimer, PC
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About Us

Serving All of Orange County!

MORTENSEN & REINHEIMER, PC is an established law corporation in Orange County. We know that some of the most important objectives in a lifetime are protecting what you have earned, and planning to provide for your loved ones. Our primary goal is to ensure that whatever step you are working towards or whichever phase of life you are in, we can help accurately reflect your desires in the legal perspective of it. Whether it is creating your estate plan or handling the affairs of a loved one you lost, our attorneys will work with you on a continual basis in order to effectively meet your needs.


Mortensen & Reinheimer, PC offers unparalleled service and is dedicated to providing each of our clients with the personal attention they need to successfully handle their legal matters. We are always available to answer your questions. Our attorneys will readily meet with you to discuss the various legal situations you encounter, such as changes to your estate plan. At Mortensen & Reinheimer, PC, we build long-term relationships with each of our clients, striving to maintain their personal investments in the security and well-being of their families.

    “Their costs are amazingly reasonable.”
    I have been extremely happy with my association with this company. I trust them completely. Their costs are amazingly reasonable.
    - Anne M.
    “Noah was great!”
    Noah was great! We enjoyed working with him.
    - Dellia & Michael
    “Tamsen and her team are always responsive, accurate, and helpful”
    The best partner in dealing with the difficult and sometimes mysterious aspects of estate planning and settlement. Tamsen and her team are always responsive, accurate, and helpful. I highly recommend this firm.
    - David S.
    “Mr. Weily Yang is a true professional with a good grasp of the law.”
    “Mr. Weily Yang is a true professional with a good grasp of the law.”
    - Ray Y.
    “Very professional and knowledgeable”

    I worked with Weily Yang on creating and presenting a couple of seminars on special needs trusts and limited conservatorships to the local community. He was very professional and knowledgeable on the topics, did a great job presenting, and was patient in answering questions from families. Weily is obviously very well versed in this area and ensures that he is on top of the latest laws/case laws. I highly recommend him for any special needs trusts/limited conservatorship needs you may have!

    - Peggy T.
    “What stood out most was their thoroughness—nothing was rushed, nothing overlooked”

    I recently completed my estate planning—including my will and trust—with Mortensen & Reinheimer, PC, and I could not be more impressed with the entire experience! From the very first consultation to the final signing, every step felt smooth, thoughtful, and incredibly well-guided.

    The team at their Irvine office on Michelle Drive was warm, attentive, and exceptionally knowledgeable. They took the time to understand my unique situation, explained complex concepts in a way that was easy to grasp, and made sure I felt confident and protected in every decision I made. Their professionalism was matched by genuine care, which made a process that can feel overwhelming surprisingly comfortable.

    What stood out most was their thoroughness—nothing was rushed, nothing overlooked. They were proactive with communication, quick to respond to questions, and clearly committed to delivering an estate plan that was both comprehensive and tailored.

    If you're looking for a trustworthy, highly skilled law firm to help you create or update your estate plan, Mortensen & Reinheimer, PC is an outstanding choice. I’m incredibly grateful for their guidance and truly feel at peace knowing everything is in order.

    - Chad B.
    “"Goes to the mat" for his Clients”

    This full service Trust law firm with Noah Herbold, Esq., helped us through a very complicated and difficult 2-stage Trust Settlement. This included letters, Filings and Court appearances. He is a Trust litigation attorney who really "goes to the mat" for his Clients. We have reached a satisfactory conclusion. He was recommended to me by another law firm, out of the area and we would not be where we are, today, without his help.

    - Kathy K.
    “I was happy with her research, in fact my meetings were a point of learning.”
    I was very pleased to meet Tamsen, and I was happy with her research, in fact my meetings were a point of learning.
    - Dorothy C.

What sets us apart?

  • Personalized Care to Every Case
    We handle each case on a one-on-one basis and explore all possible options with you.
  • We strive for excellence.
    Our knowledgeable and courteous staff work hard so that you don't have to.
  • Over 75+ Years of Combined Experience

    With 75+ years of combined experience, we've handled cases of all types and can confidently help you.

Let us Help with your case

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