Andy Alloway
President & CEO
Designated Broker | Iowa
Andy Alloway serves as CEO & President of Embarc Realty. A lifelong entrepreneur and Omaha native, Andy is also the President and Owner of Nebraska Realty, one of the largest independent real estate firms in the country. Under his leadership, Nebraska Realty has grown exponentially and is known for its culture of integrity, service, and innovation.
Andy launched Embarc Realty to bring that same people-first approach to new markets. Today, Embarc Realty is one of the fastest-growing brokerages in the country, with operations in both Iowa and Arizona. Embarc is rooted in the belief that real estate is more than transactions; it’s about people. With a vision to empower agents and elevate the client experience, Andy is building Embarc with a strong foundation of leadership, operational excellence, and community focus.
He has served in numerous industry leadership roles, including as President of the Nebraska REALTORS® Association, a member of the Nebraska Real Estate Commission, and as a Federal Political Coordinator for the National Association of REALTORS® with Congressman Don Bacon.
Christy Leesley
Chief Operating Officer
Senior Managing Broker | Iowa
Born and raised in Omaha, NE, Christy takes pride in knowing the surrounding communities where she and her husband live and raise their two active boys, Paxton and Xander. Christy is a graduate of the University of Nebraska at Omaha, earning a Bachelor of Science in Business Administration with a concentration in Marketing.
As a member of the Nebraska Realty staff in some capacity for over 22 of the 23+ years in the industry, Christy has learned a great deal with and from many of our agents at Nebraska Realty. Holding a broker’s license in both Nebraska and Iowa, her extensive sales experience has been invaluable in helping agents navigate the unique transactions that often arise.
Currently serving as Chief Operating Officer and Senior Managing Broker, Christy is always willing to wear whatever “hat” is needed. She feels privileged to contribute to the company’s growth and success. Christy is dedicated to helping both agents and clients, always approaching even the most challenging situations with respect and patience.
Tim Kubert
General Counsel
Tim has been with Nebraska Realty since 2023 and now serves in the role of General Counsel. In this role, Tim oversees the company's legal functions and advises the company’s senior management team in all areas of corporate and real estate law, including regulatory enforcement matters. Tim also assists with the company’s real estate development efforts across the region.
Born and raised in Lincoln, Nebraska, Tim graduated with a bachelor’s degree from the University of Nebraska in 2017 and a law degree from the University of Nebraska College of Law in 2020. Before joining Nebraska Realty, Tim worked as an attorney in private practice advising individuals, businesses, and governmental entities on a variety of real estate and business topics. He also obtained his Nebraska real estate license in 2021 and regularly helps buyers and sellers at every stage of the acquisition and disposition of both residential and commercial real estate.
In his free time, Tim enjoys spending time with friends and family, traveling, and following Husker athletics. Tim is also actively involved in his church community and several non-profit organizations.
Grace Dirnberger
Vice President of Accounting Services
Grace was born and raised in Seward, NE, and graduated from the University of Nebraska-Lincoln in 2015 with a bachelor’s degree in accounting and business administration. Upon graduating, she moved to Omaha to work as a financial analyst at an actuarial consulting firm. In the fall of 2016, after providentially hearing of an open position with Nebraska Realty that answered many prayers, she accepted a job in the Accounting Department.
Grace moved to South Dakota in the summer of 2018 after marrying her husband Caleb and has worked remotely for the company ever since. She enjoys spending time with her husband and kids, being outdoors, fitness, baking, and a good cup of coffee or old-fashioned. But in all of life, her greatest joy and highest aim is to love God and the people around her.
Martha Appel
Designated Broker | Arizona
With more than 35 years in Arizona real estate, Martha Appel brings extensive leadership and compliance expertise to her role as Designated Broker at Embarc Realty. She previously served for nearly two decades as Vice President and Designated Broker for one of the state’s top firms, following earlier roles as Director of Broker Relations and Legal Liaison.
Martha has contributed to real estate policy statewide through her work with the Arizona Association of REALTORS®, including as a current member and a previous chair of their Risk Management Committee, and supporting contract and standards development.
Her industry honors include AAR’s Distinguished Service Award, Broker of the Year Award by the Arizona Journal of Real Estate & Business, and the national Standing Ovation Award from her previous employer. She leads Embarc’s brokerage operations with a deep foundation in regulatory and organizational excellence.
Greg Hollman
Brokerage Advisor | Arizona
Greg Hollman is a seasoned real estate executive with over 35 years of leadership experience across brokerage operations, strategic growth, and agent development.
Prior to joining Embarc Realty, he served as President of the Tucson Association of REALTORS® MLS and as President of one of Arizona’s largest residential real estate companies. He has held senior roles as Regional Vice President and Branch Manager, giving him a full-spectrum understanding of brokerage operations.
Greg offers a comprehensive view of the industry and brings deep operational insight to his role as Brokerage Advisor, supporting Embarc’s leadership team with strategic planning, scalability, and a structure that prioritizes agent success.
Buck James Callery
Managing Broker | Arizona
Buck James Callery brings decades of experience in Arizona real estate to his role as Branch Manager of Embarc Realty in the Green Valley market.
Before joining Embarc, Buck James built a successful career as a top producing agent and broker. Over the years, he has helped hundreds of buyers and sellers navigate numerous types of markets and transactions.
In his role as Branch Manager for Embarc Realty in Green Valley, Buck James leads daily brokerage operations, provides direct support to agents, and ensures consistency in service delivery and compliance across the region.
Kristi Curren
Managing Broker | Iowa
With a career in real estate that began in 1998, Kristi brings over two decades of expertise in relocation services, sales, and brokerage. Licensed in both Iowa and Nebraska, she has built a reputation for combining professionalism with a genuine, approachable style rooted in Midwest values. Kristi’s leadership is guided by her commitment to clear, effective communication, ensuring that every agent’s path is supported with knowledge, understanding, and confidence.
Kristi has been married for 26 years and is the proud mom of two grown sons, ages 31 and 25. Family is her foundation, and she treasures time spent together, whether camping under the stars, boating on open waters, or enjoying the company of friends. Originally from Oklahoma, she’s an unwavering Sooners fan!
