Your Business Matters to Our Construction Law Firm


The Leading Law Firm in Construction Law in Seattle, WA

Avoid legal impediments to the ongoing success of your operation with help from our construction law firm. The Clausen Law Firm provides clients with experienced representation in the areas of construction real estate, land use, small business, and construction law in Seattle, WA. From drafting contracts to helping resolve landlord-tenant disputes, we are dedicated to doing everything ethically possible for our clients. Contact us today to schedule your free in-person or over-the-phone consultation.

Receive a free 30-minute consultation.
Call (206) 926-8476

About Us

Seattle-based Clausen Law Firm (CLF) was established in 1993 by attorney Mark Clausen. Over the past two decades, the firm has developed extensive expertise in the practice areas of construction, real estate, small business and personal injury law and litigation. CLF attorneys Mark Clausen, Morgan Blackbourn and Steven Malek provide strategic representation to a broad array of clients from private individuals to major companies.

The firm has earned a reputation for taking on tough cases that other attorneys cannot or will not handle. In many instances, we've been brought in to rescue a case shortly before it is scheduled for trial or arbitration by parties needing effective legal representation at critical times. We are able to get up to speed quickly and either negotiate a fast settlement, prepare the case for trial or establish a new, more beneficial schedule so that the claim can be resolved fairly.

However, we aren't just "hired guns." Clausen Law works with clients on business formation, contract drafting and review, as well as dispute avoidance. We seek long-term relationships with our clients-realizing that trust is built not only by handling lawsuits effectively, but by helping our clients avoid them in the first place. This is why we work hard to preempt conflict and disputes by keeping our legal knowledge current, our skills honed and assuring our clients are on solid legal footing from the outset. Whether you need a small business attorney or a commercial real estate lawyer, contact us today.

Why You Need a Small Business Attorney

Your business is more than where you work--it’s your livelihood. Not only that, it represents your hard work, determination, and commitment to success. That’s why it’s well worth your time to ensure you have an experienced attorney at your side should legal complications ever arise. Choose Clausen Law Firm PLLC and rest easy knowing our attorneys are ready to guide you during your time of need.

Whether you need help navigating construction law or personalized advice from a commercial real estate lawyer, our firm can provide the support you need to move forward. Reach out today to schedule your consultation.


Thank you for your interest. We look forward to hearing from you soon.

Hours of Operation
Monday - Friday,
8:30 a.m.-5:00 p.m.

701 5th Ave Suite 4400
Seattle, WA 98104


(206) 926-8476
Service Area
Puget Sound Region