SOMERVILLE, NJ – The Somerset County Freeholders by unanimous vote have hired Fanwood Mayor Colleen Mahr as Somerset County Administrator effective Jan. 1, 2021, replacing current administrator Micahel Amorosa who is retiring after serving 10 years in the position.

Mahr will begin work alongside Amorosa beginning Sept. 28 as deputy administrator until the end of the year. The vote to hire Mahr was 5-0.

Her term will extend through Dec. 31, 2025.

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“Colleen Mahr is an amazing, bipartisan choice to lead Somerset County as its Administrator during these difficult times. Whether rebuilding downtowns, growing businesses, or spearheading the fight for Raritan Valley One Seat commuter service to Manhattan, Colleen’s energy, intelligence, and commitment shine through,” said Somerset County Freeholder Director Shanel Robinson. “Administrator Mike Amorosa has been a fantastic leader over the past decade, and I’m thrilled that he and Colleen will be working together through the end of the year to ensure a seamless transition.”

Mahr has served 16 years as mayor of Fanwood in Union County.

“I want to thank the Somerset County Freeholders for their support of my new role as the Deputy Administrator, and I look forward to working with them as Somerset County’s Administrator to fully realize their vision for the County,” said Mahr. “The next year to 18 months will be challenging but full of opportunities as we navigate the impact of the COVID–19 crisis and determine how we move forward as a community.

"I am also excited to partner with an amazing County team and Mike Amorosa during this transition as we work to rebuild our local businesses and economy, maintain our history of fiscal responsibility, and deliver the high level of services our local leaders and the residents of Somerset county expect,” she added.

Mahr,has decades of executive management experience in government and business with a major focus on economic and community development. During her years as Mayor, Mahr has helped transform the community’s downtown and received numerous Smart Growth and Public-Private Partnership Awards. 

She is currently the Director of Business Development for DMR Architects where she manages a diverse portfolio of public and private projects focused on economic development and redevelopment. She is also the co-founder of the Raritan Valley Line Mayors Alliance where she vigorously advocated for One-Seat service to Manhattan on the Raritan Valley Line, and is the immediate past president of the New Jersey League of Municipalities.

“When I announced my retirement in July, I made a commitment to the Freeholders and the men and women I’ve worked with for the past four decades that I would do everything in my power to ensure my successor would be the best possible candidate,” said Amorosa. “I have known Colleen for many years and was involved in the interview and selection process, and I can say that she is without a doubt the best candidate to lead Somerset County through these difficult times. I look forward to the next few months as we transition to our respective new roles.”

In addition to the appointment of Colleen Mahr, the Freeholders also unanimously appointed Matthew D. Loper as County Engineer with a contract extension through Dec. 31, 2025.