Kris Costello
Founder & Attorney
35 years of legal experience, including more than 25 years in white-collar matters and more than 50 state and federal trials.
Meet Kris CostelloAbout Costello Law Firm
Clear judgment when the stakes are high
Costello Law Firm is a Seattle litigation and defense firm representing individuals, professionals, and businesses facing serious legal problems.
The firm brings decades of trial experience, practical business perspective, and direct advocacy to matters involving government investigations, criminal exposure, professional licensing, regulatory action, and complex litigation.
The firm
The legal problem is only part of what is at stake
A government investigation, lawsuit, criminal allegation, or licensing matter can affect far more than the proceeding itself. It can put a business, career, professional license, reputation, family, or future at risk.
Costello Law Firm is built to handle serious and complicated legal problems without making the experience more complicated for the client.
The work starts with understanding what is happening, what matters most, and what needs to be protected.
Clients deserve skilled advocacy, honest advice, and a legal team prepared to stand with them through difficult circumstances.
The approach
Make the complicated clear. Then act on what matters
Clients should understand what is happening, what is at stake, and why a particular strategy makes sense.
Costello looks beyond the immediate legal question to the potential consequences for a client’s business, profession, reputation, finances, family, and future. Decades of trial experience shape how the firm evaluates facts, risk, negotiation, and strategy from the beginning.
The goal is to identify the strongest position, communicate it clearly, and move the matter forward with purpose.
Advocacy
Facts matter. So does the story they tell
Strong advocacy requires more than knowing the law. It requires understanding how the facts will be heard by a prosecutor, regulator, licensing board, opposing counsel, judge, jury, or other decision-maker.
Costello works to identify the strongest facts, challenge assumptions, simplify complicated records, and present the client’s position clearly and persuasively.
That perspective has been shaped by decades of litigation and trial work and applies whether the goal is avoiding charges, resolving a dispute, protecting a professional license, or preparing to try the case.
Leadership
A team built around the client
Wendy Harper
Attorney
More than 25 years of experience across criminal, civil, employment, regulatory, internal-investigation, and trial matters, including service as a prosecutor.
Meet Wendy Harper
Nari Weaver
Chief of Staff
More than 15 years of experience across communications, operations, program management, nonprofit leadership, and organizational systems.
A boutique practice
Senior attention. Direct relationships
Costello Law Firm is intentionally structured so clients have direct access to the people responsible for their matter.
Matters are not pushed through layers or handed off after the initial consultation. When additional expertise is needed, the firm works with trusted co-counsel, subject-matter lawyers, forensic professionals, and other advisers to build the right team around the client and the problem.
The result is senior-level attention with the flexibility to scale when a matter demands it.
Seattle, WA 98104
When you need counsel
Start with the problem in front of you
You do not need to have every part of the situation figured out before reaching out. Costello can help you understand what you are facing, what is at risk, and what to do next.