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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.
    “I would recommend her highly!!”
    Tamsen did an estate plan for my wife and myself. She did a superb job and was excellent to work with. I would recommend her highly!!
    - James C.
    “He is a true professional and really cares about his clients.”

    Weily Yang, Esq. of Mortensen & Reinheimer has been such a supportive partner for our special education Community Advisory Committee in Irvine. We have hosted parent education webinars on “Special Needs Trusts and Limited Conservatorship” for our special education families in the past 2 years with Weily as the presenter and have had an overwhelming positive response from all the families that we invited him again this year. He was very thorough, knowledgeable and professional in his delivery and made it easy for families to understand a very complex process. He answered all of our questions and was available by email for any follow up questions. He also recently attended our Abilities Awareness event at our Resource Fair and assisted families with legal questions. We highly recommend eliciting the help from Weily for any legal needs. He is a true professional and really cares about his clients.

    - Angie F.
    “They made a challenging time easier to navigate.”
    I highly recommend Mortensen & Reinheimer, PC! The team created a welcoming, professional environment while helping with my mother's estate. Attorney Reinheimer was incredibly knowledgeable, attentive, and always available to answer my questions. The team's support made a challenging time much easier to navigate.
    - Carol T.
    “We offer the highest recommendation for any trust needs you may have.”

    Weily Yang and the entire staff there are nothing short of outstanding. Weily helped me and my siblings with the Trust transition for our elderly mother and also helped my wife and I with a long over-due revision of our personal trust. He was very patient and informative with the multitude of questions we all had and we could not have asked for anyone better. We offer the highest recommendation for any trust needs you may have.

    - Scott Y.
    “Tamsen is an extremely thorough, proficient and creative attorney.”
    Tamsen is an extremely thorough, proficient and creative attorney. She is wise beyond her years and is one of the most thoughtful lawyers I have ever met! She always does the right thing for her clients. Her personal integrity and ethics are of the highest caliber. Tamsen helped me out with some estate issues and it is a great relief to know she is in my corner when I need her. I highly recommend Tamsen Reinheimer.
    - Tina M.
    “Easy, quick, straightforward”
    Easy, quick, straightforward. Tamsen and her team made something difficult to do (estate planning with death in mind) extremely easy. I’d definitely recommend them for any estate planning needs.
    - John 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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