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Meet the Team

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Stephanie Chelf

Programs & Member Services Manager

Stephanie Chelf has joined the Mason Deerfield Chamber staff as Programs & Member Services Manager. Originally from the Middletown area, Stephanie received her Bachelors of Science in Business Administration, with an emphasis in management, from Campbellsville University located in Kentucky.

Stephanie lived in Campbellsville, Kentucky for four and half years before moving to Northern Kentucky. She and her husband now reside in Franklin, Ohio.

Stephanie is passionate about community development, personal development, and helping others.  In her free time she enjoys painting, hiking, and watching movies.  She likes to go on adventures, learn new things, and get to know those in the community.

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Sidney Hayes

Development & Finance Manager

Sidney Hayes is passionate about adding value, working hard, and helping others. Sidney was born and raised in Cincinnati, Ohio where she attended Northwest Local Schools kindergarten through senior year. During her time at Northwest High School, she was actively involved with extra-curricular actives including: playing volleyball, President of the Student Senate and Driving Angels Club, serving on the Superintendent’s advisory board, and one of the two student representatives selected for the Parent-Teacher-Student Association. She was also voted Miss Northwest during her senior year.
Sidney attended college at the University of Cincinnati where she graduated with a bachelor’s degree in accounting and a double minor in finance and management. During her time in college, she worked several jobs and internships, one of which was working with the Joe Nuxhall Miracle League, which allows children with special needs to play baseball. After college she went on to work in accounting for five years, with a majority of that experience taking place at Cintas in Mason. During those five years Sidney gained very valuable accounting, finance, leadership, and overall business knowledge.
Sidney, her husband Austin; their one-and-a-half-year-old daughter, Brooklynn; and golden retriever, Red, moved to Mason from Trenton, Ohio in October 2021. They thoroughly enjoy getting to know all that Mason has to offer. In her free time Sidney likes to spend time outdoors and with family and friends.
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Carrie Monley

Community Basket Manager

A Mason resident since 2001, Carrie Monley is eager to share her knowledge of the Mason Deerfield community with the area’s newest residents. Her goal as the Community Basket Representative is to act as a concierge and connect those new residents to the schools, government services and local businesses wishing to welcome them to their new home.

As a mom to two Mason Comets, Carrie has been an active volunteer in the Mason City Schools. From serving as a library and lunchroom aide, to planning classroom parties, coordinating art project orders and helping out at PTO events, Carrie has developed lasting relationships with other parents, teachers and students. She established even closer connections with the athletes and families in the Mason Youth Football Cheerleading program where she served as an assistant coach for four years and a head coach for two years.

Prior to choosing to be a stay-at-home mom, Carrie worked as a Marketing Manager and Advertising Manager in the Cincinnati area. She earned her Bachelor of Science in Journalism – Public Relations from Bowling Green State University and is a lifelong resident of Ohio. She enjoys living in Mason with her husband, Bob, and two children, Peyton and Paige, as well as having all her closest family nearby in Warren County.

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Amanda Oltman

Director of Communications & Member Services

Amanda has been the Director of Communications and Member Services for the Mason Deerfield Chamber since 2016. She loves the creative freedom she’s been allowed with the position, as well as getting to know the wonderful MADE Chamber members who make the City of Mason and Deerfield Township an incredible place to live, work, and play.

Amanda relocated to Cincinnati, Ohio from Grand Rapids, Mich. in May 2016, where she had been the producer for Maranda Where You Live, a daily kids and family show on the ABC affiliate. She was nominated for an Emmy for her work on the show. Amanda joined the Maranda Where You Live team in January 2015 after spending five years as the associate producer for the lifestyle program, eightWest.

Prior to joining WOOD TV 8 and WOTV 4 Women, Amanda attended Michigan State University and still bleeds green and white. Sorry, Buckeyes! While in East Lansing, Mich. she received her Bachelor of Arts degree in Journalism, with an emphasis in sports broadcasting. She was a member of the MSU Marketing Association, MSU Telecasters, Corner Blitz, and Izzone. She won a college Emmy for her work with the MSU Telecasters and the program MSU & U.

Amanda was born in Los Angeles, Cali. and moved to Cincinnati when she was nine years old. At the age of thirteen her family moved to Michigan where she attended high school, college and had been working since 2009. As a new mom she doesn’t have much spare time, but when she does she likes to travel, decorate her new home, attend sporting events, and spend time with her family, friends, husband, Kyle, son, William, and their cat, Edith.

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Sherry Taylor

President & CEO

Sherry Ratcliffe Taylor, President and Chief Executive Officer of the Mason Deerfield Chamber, is a humble servant dedicated to amplifying communities and helping businesses and professionals grow.  Sherry has held this position since April 2014.

Sherry’s organizational accomplishments include leading the efforts to redefine the organization’s mission, vision, values, priority outcomes, and strategic initiatives to better serve its members.  Sherry also led the charge to rebrand the chamber to drive clarity and purpose for a newly defined constituency. Sherry also restructured the administrative functions to reinforce financial and employee stability while engaging and attracting members and community stakeholders to the efforts of the chamber, all during tumultuous times. Sherry has recently led the charge to form a connected non-profit to the Chamber to advance strategic community development initiatives and serve as a catalyst to preserve the region’s prosperous future through a shared vision and strong Chamber of Community.

Sherry’s personal accomplishments during her tenure at the Mason Deerfield Chamber include being one of six executives featured in Chamber Executive magazine’s cover story on effective leadership in 2016. Sherry was a recipient of Lead Magazine’s Women of Influence awards for the greater Cincinnati region in 2016. She was one of twenty-one nationwide chamber executives accepted in to the ACCE Fellowship for Education Attainment in 2017. She serves on the national Hometown Cities Council where she has been a guest speaker on helping smaller town communities stand up a government affairs platform for their communities.  She has also represented the Mason Deerfield Chamber and the community it serves on several national stages for speaking engagements including:

  • “Small Chambers, Big Impact: Leaders in Advocacy” Presenter for the Association of Chamber of Commerce Executives Annual Convention in Des, Moines, IA (2018)
  • “It’s Not a Trivial Pursuit: Chamber Branding Ignite” Presenter for the Western Association of Chamber of Commerce Executives Annual Conference in Henderson, NV (2018)
  • “Singled Out: Chamber Case Studies” Presenter for the Western Association of Chamber of Commerce Executives Annual Conference in Henderson, NV
  • “Brand Blueprint” Presenter for the Association of Chamber of Commerce Executives Annual Convention in Nashville, TN (2017)
  • “Importance of Regionalism” Panelist for Tulsa Regional Chamber Intercity Visit to Cincinnati (2016)
Prior to joining the Mason Deerfield Chamber, Sherry was the Executive Director for the Carbondale Chamber of Commerce in Illinois and resigned in 2012 to move to the Cincinnati, Ohio area for family relocation reasons. Through her dedication, the chamber coordinated branding efforts with the City and University to develop a cohesive community message and revamped the chamber’s website and brand to amplify the efforts. The chamber implemented and executed a business retention and expansion strategy with the City’s economic development director which led to ordinance changes and improved perception of the chamber and the City. The chamber advocated to secure nearly half of the annual funding for the Carbondale Tourism Bureau that the City was attempting to defund.  Sherry was recognized as the Community Champion award recipient through the Illinois Small Business Development Center in 2011. Sherry holds a Bachelor of Science in Finance from Southern Illinois University in Carbondale. She resides in Mason, Ohio with her husband, daughter and cat.
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Lisa Thamann

Member Engagement Manager

Lisa joined the Mason Deerfield Chamber as the Membership Engagement Manager in June 2018. She is a Cincinnati (west-sider) native and learned early on to be a competitor and a survivor, being the second youngest of eight. Her family always had a wiffle ball game, baseball game, four square and many other fun outside activities while growing up.

After high school, Lisa was recruited to play fast-pitch softball as the catcher for Northern Kentucky University, where she graduated with a Bachelor of Science in Public Administration and an associate degree in Law Enforcement. Soon after graduating from NKU, Lisa married her husband Ben.  They resided in Deer Park, Ohio where they started a family. They moved to Mason, Ohio in 2003 with their three boys: Benny, Tyler and Michael.  While working various jobs, mostly in the evening to stay at home with the boys, Lisa volunteered for the school’s fundraisers and church events, football and baseball boosters and was a youth soccer coach.

Lisa has many years of customer relations experience and continues to improve her leadership skills. She has a passion to serve and help others in the Mason-Deerfield community and currently volunteers with the Society of St. Vincent de Paul.

Recently she joined the Mason Mighty Walkers and achieved her first Flying Pig half-marathon medal. She set her sights on walking a full marathon in 2019. She loves to spend her time with family and friends, reading motivational and inspirational books, watching an occasional Hallmark movie and travelling to Colorado to visit her son Benny.

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