Masa Yamaguchi
About Masa Yamaguchi
Masa Yamaguchi is a lawyer based in Portland, OR and has been recognized in The Best Lawyers in America® since 2025. Masa Yamaguchi is recognized in the following practice area:
- Portland, Oregon
- Corporate Law
Current Firm: Ballard Spahr LLP
Education: Lewis & Clark College, J.D., graduated 2008
Location: Portland, OR
Nearby Lawyers
Chris Hall is a partner in the Portland office of Perkins Coie LLP. He focuses his practice on serving clients in such areas as corporate finance and acquisitions and dispositions. Chris manages complex transactions having strategic importance to a company's future. He has extensive experience with transaction structuring, and has completed a number of acquisitions and dispositions, leveraged buyouts, recapitalizations and reorganizations, as well as a wide range of public and private capital...
Joe Traylor is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Construction, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Joe, who practices law in Portland, Oregon, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joe is held by other top lawyers in the same geographic and legal practice area.
David Connell is a Shareholder in Buchalter’s Portland office and a member of the Firm’s Corporate Practice Group. Mr. Connell has extensive experience in the emerging growth, technology, nonprofit and social enterprise, energy, and healthcare sectors and often serves as general counsel to business and nonprofit enterprises. He began his career as a tax attorney with an international accounting firm, and brings his tax and finance experience to the table when advising clients.
Angela Ferrer is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Employment Law - Management. Angela, who practices law in Portland, Oregon, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Angela is held by other top lawyers in the same geographic and legal practice area.
George J. Gregores represents clients on business, real estate, financing and commercial matters, including the operation, management, and structure of their business, mergers, acquisitions and divestiture opportunities. His practice has a niche focus on golf course operations, acquisition, development and finance, the negotiation and documentation of professional golf tournament agreements, golf course design and management agreements, hotel use and access agreements, and private club member...
Scott Oborne is a Principal in the Portland, Oregon, office of Jackson Lewis P.C. Mr. Oborne began his career in the firm's Chicago, Illinois, office and practiced for five years in the San Francisco, California, office before moving to Portland to open the new Jackson Lewis office dedicated to Oregon clients. Mr. Oborne’s scope of expertise spans many of the firm’s core practice areas. Mr. Oborne represents both small and large employers in litigation ranging from sexual harassme...
Brian Talcott is a partner in Dunn Carney’s Litigation Practice Group. He is the firm’s lead appellate attorney, and has briefed and argued numerous appeals in the state and federal appellate courts. Brian also specializes in insurance coverage and recovery, professional liability defense and complex civil litigation.
Lawrence H. Reichman is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Lawrence H., who practices law in Portland, Oregon, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lawrence H. is held by other top lawyers in the same geographic and legal practice area.
As a business litigator, Bob works with clients to identify and execute plans to resolve disputes in ways that make business sense. In some cases, that might involve a business solution such as restructuring a contract or negotiating an owner’s exit from the business. In others, it will involve litigating the dispute through trial and any appeals, working closely with the client to maintain focus on achieving the desired result as cost-effectively as possible. Bob assists business clien...
Keil Mueller is a resolute and tireless advocate for his clients’ interests. With over 15 years of litigation experience, Keil has regularly represented government entities, investors, consumers, businesses and other Plaintiffs in a wide variety of complex legal matters and class actions. His practice focuses on issues related to securities and financial fraud, the environment, consumer class actions, and partner and shareholder disputes among others. Keil’s thoughtful but tenacio...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Build Your Legal Practice with Effective Online Networking
by Jamilla Tabbara
How thoughtful online networking supports sustained legal practice growth.
Blogging for Law Firms: Turning Content into Client Connections
by Jamilla Tabbara
How law firms use blogs to earn trust and win clients.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer