About Us
At White Peterson, our attorneys provide full-service legal guidance rooted in experience, practical judgment, and a deep understanding of Idaho communities. 
A Long-Standing Idaho Law Firm Built on Service, Judgment, and Trust
White Peterson’s story begins with a commitment to serving Idaho clients with capable legal counsel and practical direction. Since 1968, the firm has grown alongside the families, businesses, and organizations that shape our region.
Over the decades, our attorneys have helped clients plan for the future, protect property, manage business decisions, resolve disputes, and navigate the responsibilities that come with public service. That breadth of experience gives our firm a clear perspective on how legal issues often connect across life, business, land, and community.
Today, White Peterson remains grounded in the same principles that have shaped our work for generations: listen carefully, advise honestly, prepare thoroughly, and help clients make informed decisions with confidence.
Our Core Values
At White Peterson, our core values guide how we serve clients, approach legal challenges, and fulfill our professional responsibilities.
Empathetic Guidance
Helping clients resolve problems through practical legal guidance is central to our work. We also recognize that difficult legal matters deserve compassion and sensitivity. Our attorneys take time to understand the personal concerns behind each matter to provide the right support.
Strategic Representation
Every legal matter has its own facts, challenges, and priorities. We examine these details carefully to identify an approach suited to your needs, weighing the available options and developing a strategy focused on protecting your interests.
Respected Leadership
Our firm values integrity and professionalism. William F. Nichols, Terrence R. White, and William F. “Bud” Yost are
AV® Preeminent™ Peer Review Rated by Martindale-Hubbell®
for their high ethical standards and professional ability..
A Long-Standing Idaho Law Firm Built on Service, Judgment, and Trust
White Peterson’s story begins with a commitment to serving Idaho clients with capable legal counsel and practical direction. Since 1968, the firm has grown alongside the families, businesses, and organizations that shape our region.

Over the decades, our attorneys have helped clients plan for the future, protect property, manage business decisions, resolve disputes, and navigate the responsibilities that come with public service. That breadth of experience gives our firm a clear perspective on how legal issues often connect across life, business, land, and community.
Today, White Peterson remains grounded in the same principles that have shaped our work for generations: listen carefully, advise honestly, prepare thoroughly, and help clients make informed decisions with confidence.
Meet Our Attorneys
White Peterson’s attorneys bring a wide range of experience to the clients we serve. Each attorney on our team brings a distinct perspective, but our work is guided by a shared commitment: helping clients understand their options and protect what matters most.
Marc J. Bybee
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Marc Bybee focuses on guardianship, government law, litigation, real estate, trust administration, probate, and estate planning.
Before joining White Peterson, he spent six years as a public defender in Canyon County, gaining courtroom experience that now supports his work in civil litigation, municipal matters, probate, and property-related disputes.
William F. Gigray, III
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William F. Gigray III brings decades of experience in municipal and local government, estate planning, probate, corporate law, business law, and real estate. His long record of professional service and community involvement reflects the steady leadership clients expect from White Peterson.
Matthew A. Johnson
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Matthew Johnson helps clients navigate business, zoning, land use, water law, environmental, real estate, estate planning, probate, and local government matters.

His work with municipalities, homeowner associations, businesses, and property owners gives clients guidance shaped by both legal knowledge and practical Idaho experience.
William L. Punkoney
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William L. Punkoney focuses on civil litigation, estate planning, and municipal law. Fluent in Spanish and rooted in Nampa, he brings careful preparation, strong communication, and practical legal insight to clients facing personal, public-sector, and dispute-related matters.
Philip A. Peterson
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Philip Peterson has practiced with the firm since 1979, focusing on tax and estate planning, probate and trust law, business law, real estate, water law, employee benefit plans, and HIPAA-related matters.

His long-standing service to the firm and the Nampa community reflects White Peterson’s commitment to trusted local counsel.
Brian T. O’Bannon
Senior Associate
Brian O’Bannon works with clients in business law, governmental law, and real estate. His background includes legal research and writing, intellectual property coursework, and experience connected to county counsel work, supporting his thoughtful approach to client matters.
Maren C. Ericson
Associate
Maren Ericson focuses on local government, business law, and real estate matters, with experience representing municipal agencies and public clients throughout Southern Idaho. Her work includes business transactions, real estate, corporate counsel, employment and human resources, and civil litigation.
Luke C. Dominiak
Associate
Luke Dominiak supports clients in civil litigation, government law, business law, and real estate matters. With a background in legal research, writing, and Idaho legal scholarship, he brings careful analysis and a fresh perspective to matters involving businesses, public entities, and property concerns.
Linda C. Halsey
Associate
Linda Halsey focuses on transactional business law, including entity formation, contracts, corporate governance, and business transactions. She also provides counsel on real property, civil litigation, local government, and estate planning matters.
Jacob M. Jones
Associate
Jacob Jones focuses on local government, business law, real estate, and civil litigation. His background as a deputy prosecutor and his experience in municipal legal work help him bring a disciplined, detail-oriented approach to public-sector, business, and dispute-related matters.
Laura E. Burri
Counsel
Laura joined the firm in January 2026. She started her legal career in 1986 when she joined the firm of Ringer Clark Chartered in Boise, Idaho. She worked at Morrow & Fischer. PLLC from 2014 to 2025 before joining White Peterson Gigray & Nichols, P.A.
Terrence R. White
Retired
Terrence R. White joined the firm in 1972 and served clients in municipal law, real estate, estate planning, probate, and business matters.

His long tenure as Nampa City Attorney and his service to the Idaho legal community helped shape the firm’s public-sector and local government foundation.
William F. Yost
Retired
William F. “Bud” Yost brought decades of experience in business law, estate planning, government law, probate, and trust administration to White Peterson.

Known for practical, solution-oriented counsel, his career reflects the firm’s long-standing commitment to helping clients solve meaningful legal problems.
William F. Nichols
In Memoriam: 1955–2025
William F. Nichols joined White Peterson in 1999 and became a partner in 2004. His work included estate planning, municipal law, public-sector representation, and service to Idaho communities. His contributions continue to be part of the firm’s legacy.
Deep Idaho Roots. Practical Local Perspective.
White Peterson is located in Nampa and serves clients throughout Canyon County, the Treasure Valley, and communities across Idaho.
Our work is shaped by the realities of this region: family-owned businesses, agricultural land, growing cities, public entities, development, estate-planning needs, and the legal issues that accompany Idaho’s continued growth.
Because we live and work in the communities we serve, we understand that legal guidance should be practical, responsive, and grounded in the local context.
Take the Next Step With Our Trusted Attorneys
White Peterson provides trusted representation for clients throughout Nampa, the Treasure Valley, and communities across Idaho. Contact our team today to discuss your legal needs and learn how we can help.