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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.

    “Always friendly and attentive.”
    Mortensen & Reinheimer, PC is a great practice for addressing family trust matters. They provided thorough and knowledgeable counsel, making the legal jargon easy to understand. The entire staff was kind and professional. They were always friendly and attentive while ensuring prompt communication. Well done and thank you to everyone at the firm!
    - Former Client
    “Thorough and kind”
    Mr Noah Herbold helped my elderly mother with a very complicated conservatorship law suit brought about by her son. He listened carefully to my mother and advised her accordingly. He was thorough and kind with her and represented her well in court.
    - Miss K.
    “Outstanding Service!”
    Tamsen Reinheimer gave my father the peace of mind he needed right before he passed. She came to our home to have him sign his Will/Trust. He passed five hours later. Tamsen has been supportive through the entire process. I have now retained her to update my Will/Trust. Karlee, her paralegal, is top-notch too. Everyone in the office is friendly and professional!
    - Liz C.
    “Ms. Reinheimer's excellence in these areas is clearly apparent.”
    “Ms. Reinheimer's excellence in these areas is clearly apparent.”
    - Susan B.
    “Weily demonstrated a high level of professionalism, legal expertise, and attention to detail”

    I had an excellent experience with Mortensen & Reinheimer, PC, especially working with attorney Weily Yang on a conservatorship matter.

    From the initial planning and explanation to the final filing, Weily demonstrated a high level of professionalism, legal expertise, and attention to detail. He was able to anticipate potential issues in advance and prepare thoroughly, which made the entire process smooth and stress-free.

    What stood out most was his continued responsiveness even after the case was completed. He remained timely, friendly, and helpful with any follow-up questions. I truly appreciate the professional service and meticulous document preparation, and I highly recommend Weily Yang and the firm.

    - Arthur X.
    “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.
    “Very dedicated to their clients”

    The lawyers at the firm are very responsive and thorough. I really appreciated their prompt communication at all steps of the process. We worked with Attorney Weily Yang, Esq. -- he and his team are very dedicated to their clients.

    - Thomas T.
    “Weily is professional, warm, caring, and incredibly responsive”
    We worked with Weily Yang, Esq. of Mortensen & Reinheimer, PC to set up a special needs trust for our children, and we could not be more pleased. He came highly recommended by close friends who used him for the same service, and now we understand why.

    Weily is professional, warm, caring, and incredibly responsive. He took the time to ensure we understood each step of the process and made what could have been an overwhelming experience feel manageable and supported. His deep involvement in the special needs community—especially through giving educational talks about special needs trusts—shows his true commitment to families like ours.

    We highly recommend Weily Yang to anyone seeking trustworthy, knowledgeable, and compassionate legal guidance in this area.
    - Kristen P.

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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