Mary Erlain is a Certified Change Management Specialist (CMS) and founder of Peak Development Strategies. With decades of experience, she helps business owners, leaders, and teams unlock their potential, strengthen organizational health, and achieve sustainable growth.

Mary partners with organizations to refine strategy, develop leadership, and address challenges that impact performance, productivity, and profitability. Her people-first approach focuses on aligning talent, culture, and business goals to drive measurable results.

Her mission is to:

  • Strengthen organizations for long-term success.
  • Provide expert insights and practical resources.
  • Help leaders develop effective growth and succession strategies.
Published author and speaker, Mary is recognized for her expertise in helping organizations navigate the opportunities and challenges of a multi-generational workforce. She partners with businesses to uncover root causes, strengthen communication, and build inclusive workplaces where people, teams, and organizations thrive.

 

Since founding Peak Development Strategies in 2007, Mary has guided business owners and leadership teams in defining clear goals, building stronger organizations, and achieving lasting success.

 

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To help as many people as possible find their God-given gifts and talents in their business roles.

Peak Development Strategies offers services to meet the clients where they have the greatest needs. Through our expertise and the expertise, our collaborative partners offer, we are able to create the possibility for sustainable change and growth in an organization.

We offer privately held businesses under 100 employees:

Books by Mary Erlain