Mandi is the Director of Training at Zeffert University. She is a nationally recognized leader in the development of affordable housing compliance training. She has served as a property manager of LIHTC properties since 2010 with up to 2,000 units, and since joining Zeffert & Associates, has earned several promotions, currently serving as the Director of Training for Zeffert University. For 2023, she was honored by the National Association of Homebuilders as their choice of the “HCCP of the Year” award, which is bestowed annually to one person. Mandi works with owner/agents, developers, agencies, and many thousands of individuals every year, to provide the most relevant education when and where it is needed most. She carefully curates the Course Catalog, oversees the strategy behind training scheduling and content creation, and regularly attends events so that learning is always available to meet every student in their journey.

"My job is to conduct an institution of higher learning for multifamily owners, agents, and investors,” says Mandi, demonstrating that the success of these organizations starts with their employees.

Jeffrey Promnitz is a CEO, doctoral scholar, adjunct instructor, and a dedicated advocate for the successful intersection of real estate ROI and affordable housing. He firmly believes that these two goals are not mutually exclusive. His work focuses on creating innovative compliance and educational products that empower teams to maximize investor returns while simultaneously contributing to the development of much-needed affordable housing. As the Chief Executive Officer of Zeffert & Associates, a nationally recognized leader of multifamily compliance, Jeffrey Promnitz oversees strategic direction and key industry partnerships. Commitments to advancing affordable housing access, making it profitable for investors, and having the urgency of doing it now, guide his strategy. Being a “Best Place to Work” for all Associates drives his leadership philosophy.

Ronnette is the Senior Trainer at Zeffert & Associates and an affordable housing expert across multiple funding restrictions and training disciplines. Through Zeffert University, she not only reaches more students than other training alternatives combined, but her students also boast designation pass rates amongst the highest in the nation! Organizations look to Ronnette year-over-year for their education needs, and in 2022, she was selected as the National Association of Homebuilders "HCCP Designee of the Year".

Ronnette has worked in the Affordable Housing industry since 2001. She is a graduate of Rollins College in Winter Park, Florida.

Natalie was born, raised, and embarked on a career in multifamily property management in Tulsa, Oklahoma. Beginning as a leasing consultant, she earned promotions in short order that landed her at a tax credit property where she oversaw compliance as the Property Manager.

Now, with over ten years of affordable housing experience, Natalie is a respected expert to both properties and the multifamily community as a whole. She is an Ambassador for the Tulsa Apartment Association (TAA) and serves as a committee member for the Zenith Awards, TAA’s largest annual event. Natalie is married and a mother of two active children (and a loud, but very sweet beagle).