At Melinda Williams, CPA, PLLC, our mission is to empower nonprofit organizations with personalized financial support and professional guidance. We are dedicated to serving those who serve others so they can focus on their mission of making a positive impact in their communities.
We believe in fostering personal connections with our clients, understanding their unique goals and challenges, and providing tailored solutions that align with their mission and values. Our team of dedicated professionals is committed to delivering high-quality accounting services with integrity, transparency, and empathy.
Through collaborative partnerships and compassionate assistance, we strive to build a stronger nonprofit sector, enabling organizations to thrive and fulfill their vital role in creating positive change.
Our Staff
Melinda Williams, CPA
Owner
Melinda obtained her MBA with a Specialization in Accounting from Sam Houston State University in 2008. She worked as an auditor before becoming the Administration Director of a non-profit organization. In this position, she recognized the non-profit sector's need for specialized accounting expertise. In 2015, she founded MWCPA to offer consulting and outsourced accounting services to nonprofits. The firm has since expanded from a solo operation to a team of ten, committed to empowering our clients to better serve the community. Melinda, a married mother of two daughters, enjoys rural life on 46 acres with cows and a dog. While she cherishes the tranquility of the countryside, she also relishes city visits for Broadway shows and delicious restaurants. Melinda loves to travel and has aspirations to mark visiting all 7 continents off her bucket list. 4 down, 3 to go!
Jeanne Grube, CPA
Client CFO
Jeanne Grube, CPA, obtained her BBA in accounting from The University of Texas at Austin. She started her accounting career with Ernst and Young after college and her experience with EY, led to a trust officer position and later a controller position with a local architect firm. Motherhood and the desire for a more flexible work arrangement led her back to an auditing career with Blazek & Vetterling, and it is where her love and passion for the nonprofit community developed. After spending over 15 years with Blazek & Vetterling, she desired to apply her experience in a role with MWCPA that could more directly assist clients in developing policies and processes that provide strong controls, accurate reporting, and a smooth annual audit process. As an avid shell collector, she is known to spend hours on the beach searching for the perfect shell. Jeanne also enjoys traveling with friends and photography.
Leslie Blair
Controller
Leslie Blair began her career as a bookkeeper while pursuing her college education. She earned a bachelor's degree in business administration in 2015 and has since applied her knowledge and expertise in accounting to advance professionally over the last 12 years. She finds fulfillment in the non-profit sector, feeling connected to something greater and making an impact on her community through her work. Leslie is a dedicated wife and the proud mother of two daughters. Working from home has afforded her the flexibility to manage her professional duties alongside active parenting. Her life is anchored in her Christian faith, and she seeks a deeper comprehension of theology, hoping her faith shines through in her daily interactions. Weekends are reserved for quality time with her family and friends, and she takes pleasure in thrift shopping and occasional home improvement endeavors.
Sherry Sheppard
Controller
Sherry Sheppard earned her BBA in Accounting from Sam Houston State University in August 2004. Her diverse professional background includes serving as a staff accountant at SHSU for the College of Criminal Justice, teaching middle school math, and holding the position of principal at a charter school. These roles have contributed to her valuable presence at MWCPA since 2021. Outside of work, she dedicates her time to her family, including her husband and three boys. Sherry is passionate about running, enjoys cooking, and considers shopping a serious endeavor.
Patricia Crampton
Controller
Patricia, a Texas A&M University alumna, earned her bachelor's degree in accounting in 1991. With almost two decades of expertise in Accounting and Financial Analysis within the Oil & Gas and Hi-Tech sectors, she has been an entrepreneur since 2006. Certified in QuickBooks Online, Patricia has been assisting other small businesses with their accounting and financial requirements since 2018. Residing in Georgetown, Texas, with her family, she delights in family road trips, staying active, and imparting business acumen to her son.
Jeanette Deciderio
Accountant
Jeanette was born and raised in Houston, Texas and earned her Bachelor of Business Administration in Accounting from the University of Houston. She was thrilled to join the MWCPA team in 2025 and brings over seven years of experience as an accountant for a nonprofit organization. Jeanette enjoys spending most of her free time with her husband, their sweet seventeen-year-old daughter, and their very energetic three-year old son – who keeps the whole family on their toes!
Melanie Grekstas
Accounting Clerk
Melanie Grekstas has been a valued member of MWCPA for four years. Her previous extensive background in banking equips her well to manage the processing of revenue, expenses, and bill payments for our clients. Additionally, she has channeled her creativity into family photography over the years. Outside of work, Melanie is actively engaged in the sports and extracurricular activities of her four children. She relishes a good audiobook, savors tacos, and delights in sunshine.
Madison Dinaso
Accounting Clerk
Madi, a graduate of Sam Houston State University, received her Bachelor's of Science in Education with a minor in math in 2023. Her background at a financial institution gives her the ability to assist the MWCPA team with processing revenue, expenses, and billing for our clients. After marrying in 2022, she welcomed her first son in November of 2023. She looks forward to a slow-paced, fun-filled life with her growing family and sidekick pup!
Melissa Henderson
Administrative Assistant
Melissa, who had been homeschooling her four boys for the past ten years, has recently rejoined the workforce. She is now helping Melinda with a variety of administrative and creative tasks. She enjoys serving in her church's kitchen/cafe on Sunday mornings, spending time with her family and friends, playing games, finding bargains at garage sales and thrift stores, and reading on the beach.