Relationships, Agreements, Results

Rhonda Hilyer founded Agreement Dynamics in 1990.   At that time, it was a “one-woman shop” specializing in conflict resolution and negotiations consulting and training.  Today, Agreement Dynamics is a diverse group of nationally-recognized professionals in virtually every area of individual and organization development. While this closely-knit team comes from varied backgrounds, all are focused on fulfilling Agreement Dynamics’ mission:

Meet ADI Professionals

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Agreement Dynamics - Meet the ADI Professionals


“Thank you for all you did with the City and its Coalition of Unions. I have learned more from you than you’ll ever know.”

-- Paul Girard, Special Assistant to the Mayor, City of Los Angeles

Rhonda Hilyer


President and Founder of Agreement Dynamics, Rhonda Hilyer is an international consultant with a reputation for helping convert traditional, conflict-based environments into productive, collaborative ones. As a professional negotiator for nearly 30 years, a former international labor leader, and an employer responsible for bottom-line results, Rhonda has pioneered uniquely successful approaches to both negotiating great agreements and unleashing workforce productivity. (See Media Credits.)

Rhonda consults regularly with leaders of business, labor, education, and government. She has worked extensively with manufacturers,


Mary Kay Voss

Mary Kay Voss is a results-oriented training and facilitation professional. Her diverse and successful background includes that of Mill Creek, WA City Council member, financial planner, trainer, and stockbroker. Mary Kay is an excellent meeting facilitator, bringing collaboration and extensive experience in group process to her work. Her workshops on communication and leadership are highly sought after and consistently rated as superior.

“Mary Kay did a fantastic job training our human resources staff in communication styles. We learned a great deal and thoroughly enjoyed her.”

-Sheryl Bender,
Port of Long Beach, CA

"Fabulous instructor"

- University of Washington Professional and Organizational Development  training evaluation - Winter 2009

Ginny Ratliff

Ginny Ratliff, Executive Director, has managed the day-to-day operations of Agreement Dynamics since 1995. She also provides client services such as online surveys, project management, needs assessments, and facilitation assistance. Prior to joining Agreement Dynamics, Ginny operated a desktop publishing business specializing in graphic design, training manuals, and resume writing. During college she was a consultant for two grassroots electoral campaigns and an organizer for Amalgamated Transit Union's Political Action Committee.

-Grant Nelson,
Governmental Affairs Director, Association of Washington Business

private and public utilities, non-profit associations, ports, unions, hospitals, elected bodies, transit agencies, police and fire departments, airlines, colleges and universities, and at various levels of city, county, and state government.

Rhonda specializes in leadership development, conflict facilitation, collaborative labor relations, teambuilding, and multi-party and complex negotiations.

Her book on enhancing communication, Success Signals, is a best seller, and can be purchased at our online store. Her trainings on collaboration, conflict resolution, negotiations, and facilitation are highly acclaimed and provide proven tools for success.

“To help individuals, groups and organizations forge successful relationships, agreements and results.”

“Rhonda Hilyer and her team are uniquely talented individuals who have the ability to bring people together in a collaborative manner, even when they have very different interests. They encourage effective communication with one another and work from a basis of respect which makes all the difference in the world.”

- Suzanne Mason, Director of Human Resources, Napa County, CA

“When failure is not an option, I call Agreement Dynamics. No question about it.”

--Phil Kushlan, Executive Director, Capital City Development Corporation
Former Executive Director, Washington State Public Stadium Authority
Former City Manger, Bellevue, Washington


Michelle Castanedo

Michelle Castanedo has extensive experience as a labor relations and conflict resolution specialist. She has negotiated labor contracts, has represented both management and labor, and has conducted collective bargaining agreement and other labor-related trainings. Michelle has served as a labor relations consultant for public agencies such as the Bates Technical College Faculty Union, the Washington State Department of Social and Health Services, the National Education Association of Alaska, and the State of Alaska Division of Labor Relations. She has also served as Deputy Assistant Commissioner to the Human Resources Department of the Washington State Employment Security Department, where she acted as a liaison between labor and management and resolved grievances as a management advocate. As a consultant for Agreement Dynamics, Michelle provides consulting, facilitation and team coaching to clients including the cities of Mountlake Terrace and Mill Creek, the Port of Bellingham and the Seattle Schools Alliance for Education.


Kenneth Gentry

Kenneth Gentry is a 28-year police veteran and retired Precinct Commander with the Peoria Police Department.  He spent 8 years as a military working dog handler, working two overseas tours in Korea and Germany. He holds a B.S. in Human Services and a Master's Degree in Christian Ministry. Mr. Gentry is an outstanding public speaker that has trained with Rhonda Hilyer in her Success Signals and RESOLVE methods.

Kenneth is held in high regard for his expertise in enhancing communication and positive conflict resolution. He has extensive real world experience in management resolution, contract negotiations, workplace communication and employee conflict.  Mr. Gentry has negotiated contracts as both a union president and in executive positions.
Mr. Gentry also serves as a Police Facilities Consultant, providing experience and intelligible communication between the construction design teams and the needs/desires of the police department.

Nancy Ahern

Nancy Ahern honed her facilitation, coaching, and strategic planning skills over 25 years "in the hot seat" as a local government executive and leader. She has both expertise and practical experience in managing large complex work groups, strategic planning, policy development, stakeholder engagement, personnel management, and organizational change. Her collaborative approach helps individuals and teams find creative and satisfying solutions in support of organizational goals.

Nancy's career spans several decades in public utility and environmental management, including leadership roles in Seattle Public Utilities, the King County Department of Natural Resources, and the City of Bellevue. After obtaining a doctoral degree in natural resources management early in her career, her interest evolved into the nature of organizations and "people management." Her master's degree in organizational systems coupled with her science background brings a unique perspective to problem solving and strategy.

Larry Bauman is a public sector manager with more than 30 years of local, state and federal government experience. Prior to joining Agreement Dynamics, he served as City Manager in Snohomish and Shoreline, totaling more than 20 years. Educated in journalism and politics, Larry has also been a press secretary, communications director, public information officer and daily newspaper staff writer.

With his experience and communication background, Larry is a highly skilled facilitator and mediator who is dedicated to generating positive outcomes through listening, collaboration and consensus building. While in municipal government, Larry led numerous strategic planning efforts. As a city leader, he successfully coached or counseled numerous managers, directors, and staff in the workplace. He has worked effectively to find collaborative outcomes involving citizens, environmental advocates, local and state officials and many others.

At Agreement Dynamics Larry provides facilitation, mediation, strategic planning and executive coaching services to both public and private sector clients.

“Ginny, thanks and congratulations on a job well done during the Washington E-Waste Stakeholder process. The meetings and overall effort you organized, coordinated and conducted are at the top of my list of stakeholder processes I have experienced."