Atty. Thaddeus O'Sullivan

Atty. Thaddeus O'Sullivan

Thaddeus O'Sullivan is a lawyer practicing business-commercial, civil litigation, commercial disputes and 6 other areas of law. Thaddeus received a B.A. degree from Morningside College in 1994, and has been licensed for 21 years.

Spokane Spokane 21 yrs experience 21 year
Call (509) 606-4371 Book Appointment

Profile Summary

About Thaddeus O'Sullivan at a glance

Thaddeus O'Sullivan is a Member based in Spokane, Washington, practicing at Witherspoon Brajcich McPhee, PLLC. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on employment, business, real estate, and litigation. Admitted to practice in Washington (2005) and Idaho (2012). Educated at Gonzaga University School of Law (J.D., 2005) and Morningside College (B.A. English, 1994). Active member of Washington State and American Bar Associations. Serands clients in Spokane, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thaddeus O'Sullivan is a lawyer practicing business-commercial, civil litigation, commercial disputes and 6 other areas of law
  • Thaddeus received a B.A. degree from Morningside College in 1994, and has been licensed for 21 years
  • Thaddeus practices at Witherspoon Brajcich McPhee, PLLC in Spokane, WA

Practice Areas Explained

Thaddeus O'Sullivan's Areas of Practice

Each practice area below reflects the types of cases Thaddeus O'Sullivan handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Thaddeus O'Sullivan is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Washington →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Thaddeus O'Sullivan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Washington →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Thaddeus O'Sullivan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Washington →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Thaddeus O'Sullivan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

Practicing law in Washington. Legal matters in Washington are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Spokane are typically filed in the local municipal court or the appropriate Washington state district court, depending on subject matter and amount in controversy. An attorney licensed in Washington brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Washington courts without local counsel or pro hac vice admission.

Looking for additional Washington attorneys? Browse all attorneys in Spokane or all attorneys in Washington.

Frequently Asked

Common questions about Thaddeus O'Sullivan

Where is Thaddeus O'Sullivan's law office located?
Thaddeus O'Sullivan's law practice is located in Spokane, Washington. The firm is Witherspoon Brajcich McPhee, PLLC. You can contact the office directly through this profile page.
What practice areas does Thaddeus O'Sullivan handle?
Thaddeus O'Sullivan focuses on employment, business, real estate, litigation. Each practice area listed reflects experience handling cases of that type in Washington.
How long has Thaddeus O'Sullivan practiced law?
Thaddeus O'Sullivan has 21+ years of legal experience and has been licensed since 2005.
Where did Thaddeus O'Sullivan go to law school?
Thaddeus O'Sullivan earned their education at (J.D., 2005); (B.A. English, 1994).
How can I contact Thaddeus O'Sullivan for a consultation?
You can contact Thaddeus O'Sullivan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Gonzaga University School of Law
- 2005
B.A. English
Morningside College
- 1994

Bar Admissions

Washington
Admitted: 2005
Idaho
Admitted: 2012

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