Legal Services & Mediation
The attorneys at Birch Street Law provide legal services to help guide individuals through some of life’s most sensitive legal matters—probate, guardianship, trust and estate dispute resolution (including TEDRA petitions), estate planning, elder and vulnerable adult protection (including VAPOs), and real estate issues—with clarity and compassion. Our attorneys strive to resolve conflicts efficiently and respectfully, helping parties find common ground to avoid the expense, uncertainty, and stress of litigation.
Attorney Rebekah Zinn’s experience as a Court Commissioner (retired) enables her to help parties resolve disputes outside of court as a mediator by facilitating open dialogue and finding fair, mutually agreeable solutions.
Learn more about our Mediation Services here.
Over 30 years combined experience
Guardianships and Conservatorships
Helping families secure legal protection and care for loved ones who can no longer manage on their own.
Probate, Trust and Estate Administration
Guiding executors and families through every step of settling estates with clarity and care.
Probate Litigation
Resolving disputes over wills, estates, and fiduciary duties with a steady and experienced hand.
Trust and Will Contests
Representing clients in challenges to the validity of fairness of trusts and wills
Estate Planning
Helping individuals and families develop full estate plans, including Wills, Durable Powers of Attorney, and Advanced Healthcare Directives.
TEDRA Petitions
Using Washington’s unique TEDRA process to resolve trust and estate matters efficiently—often without a trial.
Vulnerable Adult Protection Orders (VAPOs)
Taking swift action to safeguard seniors from undue influence, fraud, and abuse.
Mediation Services
We provide confidential, cost-effective mediation to help parties resolve disputes outside of court. Our mediator facilitates open dialogue and fair, mutually agreeable solutions.
Our Attorneys
We’re proud to offer thoughtful guidance and dedicated support to every client we serve. Get to know the people who bring experience, empathy, and a personal touch to everything we do.
David P. Sisk
- Focuses on probate, guardianship, real estate, and estate planning, with a compassionate approach to helping families navigate life’s most difficult transitions.
- Experienced courtroom advocate with a collaborative, big-picture philosophy aimed at resolving disputes efficiently and respectfully.
- Former general litigator and government professional with a diverse background—including legislative work and international experience—bringing both depth and empathy to his legal practice.


Rebekah Zinn
- Former Superior Court Commissioner with 12 years of experience presiding over probate and guardianship matters.
- Passionate Elder Law attorney focused on estate planning, probate, elder abuse, and disability advocacy.
- Skilled mediator and litigator dedicated to resolving disputes creatively and compassionately.