Costello Law Firm PLLC

Costello Law Firm is a woman owned trial and litigation practice The firms legal services include complex civil and business litigation dispute resolution white collar government investigations employment health care legal compliance and risk management We provide litigation and dispute resolution and compliance services to business owners professionals and corporations at times of crisis growth and change

Costello Law Firm PLLC is a woman owned trial and litigation practice serving clients in Seattle and throughout Washington State. The firm focuses on complex civil and business litigation, providing dispute resolution and litigation support when businesses, professionals, and corporations face high-stakes challenges—especially during times of crisis, growth, and change. Costello Law Firm also supports organizations with government investigations, including white collar matters, and delivers targeted legal guidance for employment, health care, and broader legal compliance and risk management needs. With an emphasis on trial readiness and effective dispute resolution, the firm helps clients navigate difficult situations with experienced legal counsel grounded in litigation strategy and compliance-focused risk management. For local legal support in Seattle, Costello Law Firm PLLC is committed to delivering clear, practical representation for organizations that need a strong advocate and a disciplined approach to both litigation and compliance.