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Staff Directory

Our Rehab for Men Team

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Rev. Craig Harper, Executive Director


Craig has been working with Great Lakes Adult and Teen Challenge since 1992. Craig obtained a Bachelor’s degree in Math and Chemistry Education from Louisiana State University in 1987. He has done graduate work at Cardinal Stritch University and Marquette Graduate School of Business. In 2007, Craig was awarded a scholarship to attend classes in the Executive Education Program at Harvard Business School. He was chosen for this opportunity by members of the Harvard Business School Club of Wisconsin and attended additional classes in 2009 and 2014, both at the business school and at Harvard’s Kennedy School of Government. Craig served on the National Teen Challenge Board of Directors and as a National Teen Challenge Regional Representative from 1996 to 2002.

He is an ordained Assembly of God Minister and Nationally Appointed Home Missionary. He is past President, Vice President, and Treasurer of the Northwest Milwaukee Chamber of Commerce. He is a member of the U.S. Swimming Foundation, U.S. Golf Association, the Northshore Republicans, the Harvard Business School Club of Wisconsin, Milwaukee Rotary, and Milwaukee Rotary’s Partners in Education Committee. In 2012, Craig was appointed to the State Council on Alcohol and Other Drug Abuse by Governor Scott Walker as his appointed Designee.

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Rev. Jennifer Harper, Associate Director of Programs and Services


Jennifer Harper serves as our Associate Director of Programs and Services. Jennifer’s background is in missions and church planting. This passion for building the church and establishing bible schools led her to Europe, Asia, and South America for several years after graduating from Rhema Bible College in Tulsa, Oklahoma. A Pennsylvania native, Jennifer has enjoyed living in Wisconsin since 2006, when she moved there to work for Lake Country Family Church. She is a Board Certified Mental Health Coach, member of the American Association of Christian Counselors, ordained minister through the Rhema Ministerial Association International. She is a graduate of Harvard Kennedy School of Executive Education.

Jennifer enjoys working alongside her husband, Craig, and the amazing team of staff at GLATC every day, pursuing excellence in the program to best serve the men and women who come through the doors seeking freedom. She enjoys cooking, kayaking, spending time with her family, and almost any outdoor adventure.

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Jim Wacholz, Men’s Program Director


Jim is the Men’s Program Director. He comes to us with a wealth of knowledge and experience. Jim has worked in corporate America for decades and is a proven team leader, manager, and project coordinator. He is active at his local church where he serves on the prayer team. He has been a Milwaukee area native for over 40 years.

Jim is passionate about discipleship and showing the love of Jesus to our students. Jim enjoys spending time with his wife and serving at their church together.  


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Anthony Buyer, Men’s Direct Care Staff


Anthony lived in Los Angeles, CA all his life, until moving to Milwaukee in 2021. He completed the program at Riverside Adult and Teen Challenge in 2020 and then served as an intern for a year.

He came to Great Lakes Adult and Teen Challenge to serve on the rehab for men Program Staff. Read More Anthony is passionate and full of life! You can find him exploring his new city or leading a workout for the guys.


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Melanie Leitinger, Education Director


Melanie was a student at Great Lakes Adult and Teen Challenge initially. She went on to complete the program at Nashville Adult and Teen Challenge in 2001. After graduation, she attended Bible school at Teen Challenge Ministry Institute in Jacksonville, FL, in 2007. Read More She was hired at Great Lakes Adult and Teen Challenge in Milwaukee in 2008. She also holds associate’s degrees in both accounting and early childhood education.

Melanie has worked in many roles here over the years! She has done accounts receivable, women’s program staff, merchandising manager at SuperThift, and most recently, the Education Coordinator. She has a heart service and always gives her best to the students.

Larry Daughenbaugh, Social Enterprise Manager


Larry has served in many capacities at Greater Harrisburg PA Teen Challenge, The Resting Place Crisis Center and Thrift Store in North Carolina, and as Executive Director at Love Inc. and Revelations of Freedom Ministries.

A Teen Challenge rehab for men graduate, Larry is in awe of God taking what the enemy meant for bad to use for His Kingdom work! He is now honored to serve as the Work Therapy Supervisor at the center where he started his journey almost twenty years ago.



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Denise O’Brien, Finance Coordinator


Denise grew up and has lived in the Milwaukee area all her life. As a student at Custer High School, she took a class in accounting, which started her on a path for Bookkeeping. Denise has been a bookkeeper for over 30 years working for a mortgage broker, preparing taxes, and at Adult and Teen Challenge. Denise has been the Finance Coordinator for Adult and Teen Challenge for over ten years. Her goal is to be a servant for Christ and use her skills for the ministry.

In her spare time, you will find her spending time with her children and grandchildren, walking her dog, shopping, and helping around the condo complex where she lives and is on the board for.

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Ron Nitka, Direct Care Staff


Ron is a proud Father from Milwaukee, WI. He is a graduate of Adult and Teen Challenge and completed the Emerging Leader Program. Ron’s life is rooted in his faith and in study of the Word of God. One of Ron’s many talents is woodworking. Ron enjoys teaching this valuable skill to students in our campus woodshop. His role as a direct care staff member and intake specialist reflects his dedication to serving others with compassion and understanding.

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Krystle Pierce,  Special Events Coordinator


Krystle is from Fond du Lac, WI and is the proud mother of three boys. She completed the one-year program at Great Lakes Adult and Teen Challenge in 2022. After graduation, she continued to complete the one-year Emerging Leader Program, where she served in Special Events and mentorship. From overcoming challenges to celebrating successes, Krystle attributes all achievements to the grace and guidance of God. With a heart filled with gratitude and humility, she endeavors to serve others with compassion and kindness, reflecting the love and mercy she has received. Krystle uses her newly found, God given gifts and talents, as our Special Events Coordinator.