Experience matters.

Cassady Law PLLC is a trusted resource for families, youth and children for special education and disability law.  We offer wise counsel to our clients, skilled negotiations in educational planning meetings, and fierce advocacy in the courtroom.    After decades of experience advocating for special needs students in the schools, Cassady Law PLLC now maintains a small and select caseload in order to focus exclusively on students with social, emotional, and behavioral issues, particularly those who may be in need of private placements or significant and meaningful service packages in the public schools

Our firm has been a leader in special education law for decades. When you work with Cassady Law PLLC, you have the benefit of our deep expertise. We value our relationships with our clients and offer a range of services to meet their needs:

Education Law

We are experienced in both litigation and advocacy to help your child get the educational services they need and deserve.


We work closely with families to guide them through the incompetency hearing through to obtaining a guardianship appointment.

Wills, Trusts & Estates

We understand that planning for your loved ones’ lives after your death is a sensitive and delicate subject and we'll work to make a customized plan.

Special Education

We assist families seeking special education services and civil rights at all phases from initial evaluation through successful transition to adulthood.

Cassady Law

Cassady Law PLLC has served youths and families throughout Seattle and the Pacific Northwest for over twenty years, focusing exclusively on disability and education law.

We have a proven track record.

Experienced Attorneys

Cassady Law won an important victory for the rights of youth to receive FAPE in residential treatment centers. Edmonds School District v. A.T. solidified the right to receive related services in mental health under IDEA.

Best Case Strategy

Cassady Law received a favorable ruling from the Western District of Washington on a residential placement case that will affect many students with profound mental health needs and other disabilities who need to be placed in residential treatment schools in order to receive a free appropriate public education in a therapeutic setting.

Review Your Case

Cassady Law filed an OSPI complaint on behalf of 11 students in Tacoma Public Schools, representing the interests of thousands of students throughout the district with no voice. TPS laid off or reduced hours of hundreds of paras without notifying parents; cut services outside of the IEP process; and many parents are kept in the dark about when special education services will begin.

An established leader in the field of education law, Charlotte Cassady has advocated for special needs students in the courts for over two decades.  

After graduating from Tulane University School of Law cum laude in 1989, Charlotte moved to Seattle to practice labor and education law in Seattle’s largest law firm.  She left to pursue a career in public interest law, forming Cassady Law PLLC in 1998.  

Since its inception in 1998, Cassady Law PLLC has focused on representing parents and legal guardians of special needs students seeking educational services from Washington state and school districts under the Individuals With Disabilities Education Improvement Act (IDEA) and other disability statutes.  

Charlotte has served on a number of boards including The ARC of King County and Teamchild; has authored and edited texts including the education section of the WSAJ Civil Rights Deskbook; and has spoken frequently on the topic of education law, including at the Pacific Northwest Conference on Special Education and the Law and CLEs sponsored by the Washington State Bar, the University of Washington School of Law, and the Seattle University School of Law.    


My wife and I hired Cassady Law to represent us in a difficult case and found Charlotte and her staff to be honest, professional, responsive, knowledgeable, and understanding. We highly recommend Cassady Law for IDEA cases.
Robert T.
Charlotte is one of the most knowledgeable, experienced and winningest educational rights lawyers in our area. She was as committed to our child’s welfare as we were! She saved our daughter’s life!
Julie O.
Charlotte Cassady is an expert special education lawyer. She Is adept at handling special education cases and does her work with care and sincerity. She is kind and listens carefully to her clients about what they need.