About

A clear, steady approach to family law matters.

A steady approach to difficult situations

Family law issues can bring a lot of uncertainty. This firm focuses on helping people slow things down, understand what’s happening, and make informed decisions about what comes next. With a thoughtful and practical approach, clients are guided through each step with clear communication and a steady sense of direction.

Our Mission and Values

Guiding every case we take with integrity, compassion, and expertise.

Justice for Every Client
We are dedicated to ensuring every client receives the justice they deserve, no matter how complex the case.
Compassionate Advocacy
We approach each case with empathy and care, recognizing the emotional toll legal challenges can take.
Professional Excellence
Our team strives for the highest standards of professionalism and expertise in every aspect of our work.
Client-Centered Approach
Your needs, rights, and goals are at the forefront of everything we do.

“The secret of change is to focus all of your energy, not fighting the old, but on building the new.”

- Socrates

My Mission

I formed Tanzosh Family Law LLC in March of 2010 to provide optimal services for clients, after building extensive litigation experience since 1999 and receiving mentoring from the top family law firms in Portland. My proactive and attentive practice style is designed to develop a team approach with each client in reaching the best resolution, whether through compromise or trial, together.

The great Chinese war leader, Sun Tzu, stated in The Art of War, “he who knows when he can fight and when he cannot, will be victorious.” If the other party is not going to be reasonable, there is a judicial system I trust. As to those cases that need a judge or jury to decide, I represent clients in court effectively and with honor.

Litigation has a cost, however, financially and emotionally. As Sun Tzu also states, “the greatest victory is that which requires no battle.” To that end, I extended my practice to handling mediations. Assisting others in resolving controversy, with or without attorneys, requires a complimentary and advanced skill set, especially in family law.

My mission is to attain the best outcome for clients with the least amount of destruction on the family. Uniting litigation and mediation is the way to achieving that goal. Please contact Tanzosh Family Law LLC today.

Experience matters

Education & Background

A strong foundation in both education and hands-on experience shapes the way cases are approached. From formal legal training to ongoing work in negotiation, mediation, and collaborative law, the focus has always been on helping people navigate complex situations with clarity and practical guidance. This background supports a balanced approach that prioritizes thoughtful decision-making, steady communication, and long-term outcomes.

Bachelor of Arts in Philosophy, The American University, 1996
Juris Doctorate, University of Maryland School of Law, 1999
Gain The Edge! Negotiation Strategies for Lawyers, Latz Negotiation Institute , 2004
Training in Collaborative Law from Collaborative Family Law Professionals of Oregon & SW Washington, 2005
Training in Mediation from Genesis Mediation LLC, 2015

Meet Our Other Team Members

Our team of dedicated attorneys and legal professionals
is here to guide you every step of the way.

Mary Stade

Paralegal

The Strength of the Team

Mary Stade brings a unique blend of high-stakes precision and human-centered leadership to Tanzosh Family Law. As a seasoned Family Law Paralegal, Mary is the operational engine behind the scenes, ensuring that every case is handled with the meticulous attention to detail it deserves. Her background in family law gives her a sharp perspective on the complexities of legal transitions and a steady hand when navigating difficult circumstances.

Strategic Leadership, On and Off the Court

Outside of the office, Mary’s life is defined by a different kind of advocacy. Known in the community as “Coach Mary,” she is the Head Coach and Market Owner of the Willamette Valley Jaguars, a professional men’s basketball team. She made history by leading the first all-female coaching staff in men’s professional basketball—a testament to her belief that leadership is about merit, mentorship, and building a culture of mutual respect.

Driven by Community

Whether she is managing a complex legal file or coaching from the sidelines, Mary’s philosophy remains the same: people come first. A “basketball scholar” who studied the game from a young age, she applies that same intellectual curiosity and strategic thinking to her legal work.

A native of Michigan’s Upper Peninsula and a graduate of Western Michigan University, Mary has called Oregon home for decades. When she isn’t at the firm or the arena, she is likely attending local Chamber meetings, advocating for youth mentorship, or enjoying life as a dedicated dog mom.

Testimonials

Read More Reviews

      EXCELLENT  
   Based on 16 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Alin Iancu 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can’t say enough good things about Brenna Tanzosh. She is an exceptional divorce attorney and an absolute professional. Thanks to her knowledge, efficiency, and strategic approach, my divorce was finalized in less than 45 days, which is something I honestly didn’t think was possible. Brenna was incredibly responsive, detail-oriented, and focused on solutions from day one. She worked seamlessly with opposing counsel to resolve every issue quickly and as favorably as possible, without unnecessary conflict or delays. Her ability to balance firmness with professionalism made the entire process far less stressful than I expected. If you’re looking for a divorce lawyer who is smart, efficient, calm under pressure, and genuinely committed to getting results, Brenna Tanzosh is the one. I’m extremely grateful for her work and would recommend her without hesitation.
  
 
      Posted on Google  
   
   Randal Lishka 
 
 
 
 Trustindex verifies that the original source of the review is Google. What a team. Brenna and Mary. No BS. I was treated badly by a Law firm before I met them. Wouldn’t hesitate to refer them.
  
 
      Posted on Google  
   
   Regina Malcolm 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brenna is hands down the best family law attorney you will find in Oregon. She took our upside down case and won. She did not miss any detail and touched on all critical areas during each trial. You will not be disappointed if you choose her to represent you.
  
 
      Posted on Google  
   
   Andre Farci 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can't thank Brenna and her paralegal, Mary, enough for the outstanding job they did handling my divorce case.  From start to finish, they were professional, responsive, and completely on top of every detail. While two different opposing attorneys from two different law firms (one opposing attorney was completely incompetent before she was let go by my ex) consistently missed deadlines/meetings and failed to deliver expected discovery documents on time on numerous occasions, Brenna & Mary stayed focused, organized, and ahead of every call with the opposing attorneys. Brenna & Mary's dedication, expertise, and proactive communication gave me peace of mind during a very long & stressful time.  I’m so grateful for their support and highly recommend Brenna to anyone needing strong & dependable legal representation for their divorce.
  
 
      Posted on Google  
   
   Bret Bunke 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brenna and her staff did an incredible job start to finish. During my divorce, her crew was timely and clarified countless nuances to the process. The rescheduling and other hurdles to the timeline were clearly adjusted and the level of communication was both informative and heartfelt. If you are wondering where to start, this is the place when faced with such a difficult and delicate process. 10/10
  
 
      Posted on Google  
   
   Sparksmom 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional and timely. Passionate about her work and your case! At the same time she is sensible and honest. She’s also a great mediator and works really well with other attorneys. “Your in good hands” the judge told me during our trial and truly I feel like I am!  Rachel is an incredible legal assistant! Organized, great at listening, encouraging and calming when needed. I would Highly recommend this office!
  
 
      Posted on Google  
   
   Amy Bushlach 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brenna is the best attorney I've worked with in Family Law.  She's sharp and strong, but also compassionate and able to connect on an emotional level.  That is very important.  Cases involve real lives - not text book examples.  Good attorney's offer constructive support and advice - They do not fuel raging fires with lies, manipulation, and intimidation.  OC in our case was grossly unprofessional, disrespectful, and deceitful.  Brenna handled him like a champ and resolved 11 years of traumatic litigation within 6 months of working with her.  I wish I would've had Brenna on my case years ago.  If OC had the same integrity and professionalism, the past decade might've been significantly better for everyone involved.
  
 
      Posted on Google  
   
   Justin Boniface 
 
 
 
 Trustindex verifies that the original source of the review is Google. I contacted Brenna to help me get visitation with my son. During the consultation she spoke with me for over an hour about my situation. I have never had a lawyer genuinely care about a situation or a client the was Brenna did. I recommend Brenna to any parent who is having their rights violated. Hands down the best family Lawyer in Portland. Thank You everyone at Tanzosh Family Law!!!!!

Take the first step

If you’re dealing with a family law issue, you don’t have to figure it out on your own. Reach out to start a conversation and get a clearer sense of what comes next.