Our Team

Bobby McCaslin Sr. is a distinguished figure in the world of real estate development and community engagement. As the visionary Founder of MCIII Development Group, Corporation, Bobby brings a wealth of experience and expertise to the forefront of urban development in the Dallas-Fort Worth Metroplex.

With a solid foundation in the construction and steel industry, spanning 18 years of dedication and hard work, Bobby's journey led him to the vibrant city of Mansfield. It was here, while constructing the Law Enforcement Center, that he forged deep connections with the city and its residents. In 1991, his entrepreneurial spirit led him to acquire and transform an abandoned subdivision into what is now known as The Arbors at Creekwood—a testament to his commitment to quality living spaces.

Driven by a passion for real estate, Bobby's transition from construction and steel to real estate development was seamless. His vision was clear: to create exceptional communities that residents could take pride in calling home. The success of The Arbors at Creekwood marked the inception of a remarkable series of development projects, all within the bounds of Mansfield.

In 1997, Bobby embarked on the ambitious journey of assembling land parcels to bring to life the 800-acre master planned community, M3 Ranch. This visionary endeavor demonstrates his commitment to creating enduring legacies that enrich the lives of countless individuals and families.

Bobby's strategic vision and his unwavering dedication to building meaningful relationships have been instrumental in shaping the continued success of MCIII Development Group. Under his leadership, the company has gone on to develop single-family residential subdivisions across multiple cities in the Dallas-Fort Worth Metroplex, including Mansfield, Arlington, Grand Prairie, Little Elm, and McKinney.

Beyond his professional accomplishments, Bobby remains deeply engaged in the Mansfield community, reflecting his commitment to giving back. He actively participates in organizations such as the Mansfield Mission Center and the Mansfield Rotary Club. Additionally, he plays a pivotal role in the HIM Food Bank Center, further solidifying his dedication to creating positive change within the community.

Bobby McCaslin Sr.'s multifaceted contributions to real estate development and community service stand as a testament to his unwavering commitment to excellence and the betterment of Mansfield and beyond.

In 1993, Bob McCaslin Jr. embarked on his journey with the MCIII Development Group. With a strong educational foundation, he earned his associate degree in construction management from Texas State Technical College in 1991. Bob's expertise in the home building industry proved invaluable as he forged a pivotal partnership with Choice Homes, propelling MCIII Development Group to a series of remarkable achievements in subsequent years, including expansion into McKinney and Little Elm.

Dedicated to the advancement of his field, Bob McCaslin Jr. is not only a distinguished board member but also a former president of the Greater Fort Worth Builders Association. Additionally, he has served as a past board member for both the Mansfield Area Chamber of Commerce and the Texas Association of Builders, contributing significantly to the growth and development of these influential organizations.

Kim McCaslin, a driving force behind the remarkable success of MCIII Development Group and Montclair Properties, Inc. From the moment she joined the company as Vice President of Development in 1997, Kim embarked on a quest to create extraordinary communities that would redefine the North Texas landscape.

With an unwavering passion for innovation, Kim expanded her horizons in 2006 by founding Montclair Properties, Inc., igniting a new era of commercial development. Her visionary leadership has since given birth to captivating mixed-use projects, inviting neighborhood retail spaces, and luxurious Class A Multifamily communities that leave a lasting impression.

Armed with a profound understanding of marketing, Kim's creative prowess has elevated MCIII Development Group's position within the municipalities they serve. Her strategic initiatives have forged deep-rooted connections and cultivated a thriving network of investors, solidifying the company's reputation as a trusted partner in the industry.

A graduate of Texas Women's University, Kim's dynamic skill set encompasses a wide range of responsibilities. From acquiring prime land parcels to orchestrating intricate contract negotiations, navigating entitlement processes, fostering meaningful relationships with builders, ensuring investor satisfaction, and securing optimal financing. She effortlessly weaves together all the threads that contribute to the success of each project.

Beyond her professional accomplishments, Kim's has a passion for her community. Having made Mansfield her cherished home since 2002, she has served on the Community Advisory Board for Mansfield Community Bank and Mansfield Methodist Hospital. Additionally, her contributions to organizations like Commercial Real Estate Women, Mansfield Education Foundation, and the Mansfield Area Chamber of Commerce have left an indelible mark, uplifting those around her and fostering a spirit of collaboration and progress.

Kim McCaslin's journey is a testament to the transformative power of vision, creativity, and unwavering dedication. As she continues to shape the future of real estate development, her inspiring story serves as a great example to dream big, creating extraordinary spaces that leave an enduring legacy for generations to come.

Carly joined MCIII as a Development Associate in December 2022. Carly assists Vice President, Kim McCaslin in all aspects of the ground up development process. Her responsibilities include direct interaction with elected officials in order to obtain necessary entitlements, working with consultants, providing market research, and pursuing new relationships with potential investors.

Dr. Carmin McKinney serves as Director of Investor Relations for MCIII Development Group, where she leads investor engagement, relationship development, and strategic partnerships supporting transformative community and real estate projects across North Texas and beyond. With more than 20 years of experience in leadership, fundraising, and community engagement, Carmin brings a relationship driven approach to connecting investors, stakeholders, and the communities MCIII serves.

Prior to joining MCIII, Carmin served as Executive Director of Mansfield Mission Center, leading collaborative initiatives alongside civic leaders, healthcare partners, churches, schools, businesses, and donors to create measurable community impact. She has also advised nonprofit organizations on donor engagement, fundraising strategy, stewardship systems, and organizational growth through her consulting work. Most recently, Carmin led the Philanthropy degree program at the University of Texas at Arlington, where she equipped future nonprofit and development professionals with expertise in fundraising, donor cultivation, and community partnership development.

Carmin holds a bachelor’s degree from Tyndale University, a Master of Arts in Organizational Leadership from Eastern University, and a Doctorate in Organizational Change and Leadership from University of Southern California. A longtime Mansfield resident, she remains passionate about building meaningful relationships and advancing thoughtful development that creates lasting economic and community impact.

Brenda Barnhart serves as Office Manager and Full-Charge Bookkeeper at MCIII Development Group, bringing more than 20 years of experience in financial management and operations support. Her professional background includes work in construction, manufacturing, and nonprofit sectors. Brenda is certified in bookkeeping and is especially skilled at improving inefficient processes, reconciling challenging financials, and helping organizations operate with greater clarity and structure. She is valued for her collaborative approach, attention to detail, and ability to create practical solutions in dynamic environments.