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About me

Mr. Maas focuses his practice on corporate law and finance. He regularly aids businesses navigate mergers & acquisitions, joint ventures and strategic alliances, the formation and capitalization of venture capital, buy out, real estate and other investment funds. Mr. Maas has been elected a “Super Lawyer” every year since 2003, and was named a “Best Lawyer” in Mergers and Acquisitions Law for 2015.

 Mr. Maas is a shareholder at Karr Tuttle Campbell and chairs the firm’s Business and Finance department. He has also been an adjunct professor at the University of Washington School of Law Graduate Tax Program and a senior adjunct professor at Golden Gate University’s Graduate School of Taxation.   


Practice areas


  1. Mergers & Acquisitions: 40%
    33 years
  2. Tax: 15%
    33 years
  3. Venture Capital: 15%
    33 years
  4. Limited Liability Company (LLC): 10%
    33 years
  5. Other: 20%
  6. More 

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Contact info

701 Fifth Avenue
Suite 3300
Seattle, WA, 98104


WIGood Standing197803/16/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Best Lawyer - Mergers & AcquisitionsBest Lawyers in America2015
Super LawyerSuper Lawyers2014
Super LawyerSuper Lawyers2013
Super LawyerSuper Lawyers2012
Super LawyerSuper Lawyers2011
Super LawyerSuper Lawyers2010
Super LawyerSuper Lawyers2009
Super LawyerSuper Lawyers2008
Super LawyerSuper Lawyers2007
Super LawyerSuper Lawyers2006
One of Top Lawyers in Puget SoundN/A2006
One of Washington's Best LawyersN/A2006
Super LawyerSuper Lawyers2005
Super LawyerSuper Lawyers2004
Super LawyerSuper Lawyers2003
AV RatingN/AN/A
Work experience
TitleCompany nameDuration
Shareholder and Chairman of Business & Finance Dept.Karr Tuttle Campbell1986 - Present
Association namePosition nameDuration
Association for Corporate GrowthMember2014 - Present
Attorney CPA Tax ClinicBoard of Editors1995 - Present
Washington State Bar AssociationMember1979 - Present
American Bar AssociationMember1979 - Present
King County Bar AssociationMember1979 - Present
Publication nameTitleDate
Washington Partnership Law and Practice HandbookTaxationN/A
UnknownStructuring TransactionsN/A
School nameMajorDegreeGraduated
New York University School of LawTaxLL.M - Master of Laws1978
University of Wisconsin Law SchoolLawJD - Juris Doctor1977
Speaking engagements
Conference nameTitleDate
Mergers and AcquisitionsEarnouts and Pricing Mechanisms2006
Employee Stock Ownership PlansMerger and Acquisition Issues for Employee Stock Ownership Plans2000
Business Section Mid Year MeetingPartnership Tax Basics for Drafting Limited Liability Company Operating Agreements2000
Venture Capital FinancingHow to Raise Equity Capital for Early Stage Ventures1999
University of WashingtonAdjunct Professor Corporate TaxationN/A
Golden Gate UniversitySenior Adjunct Professor Tax ProgramN/A