Click on any of the bios for more information about our team.
Richard Tanenbaum serves as principal owner and CEO of Gardner Tanenbaum Holdings and brings over 35 years of commercial real estate experience including development, acquisition and brokerage. Throughout his tenure, he has demonstrated the ability to provide creative and quality real estate solutions for corporate users needing commercial space in the Oklahoma market. Since taking over as CEO, Mr. Tanenbaum has vastly expanded the asset base of GTH’s commercial portfolio as well as the company’s capabilities and expertise in different types of construction including industrial, office, retail and multifamily. Since 1997, he has overseen the growth of the company’s commercial portfolio from 800,000 square feet to over 6,000,000 square feet. Mr. Tanenbaum completed over 35 projects totaling more than $500,000,000, making GTH one of the largest developers in Oklahoma. These projects have ranged from single and multi-tenant warehouse and distribution facilities, large single tenant office complexes for companies such as Boeing and Northrop Grumman, a hanger complex for Aeronautical Radio, Incorporated (ARINC), as well as over 2,000 apartment homes in six different multifamily communities. Mr. Tanenbaum received a Bachelor of Arts degree in Economics from Tulane University.
Becky Tanenbaum Mallace
Becky Tanenbaum Mallace is a principal of Gardner Tanenbaum Holdings, where she leads the Real Estate Investments division of the company. She has extensive experience in Government leased assets, multifamily, office and industrial sectors, where she is involved with the acquisition and ongoing management of investments. She oversees the research of viable purchases, transactions, property management and regularly engages in negotiations and operations activities. In addition, she handles corporate communications, marketing, research and special projects. Mrs. Mallace received a Bachelor of Arts in Fine Arts and Design from the George Washington University in 2004.
Becky Tanenbaum Mallace
Cindy Murillo, Chief Operating Officer, brings over 20 years of experience in commercial construction, multi-family, student housing and military housing. Her background includes ground-up commercial construction, project management in both commercial and residential real estate and all aspects of the multi-family industry. Ms. Murillo leverages her knowledge and experience in sales, marketing, development, estimating, subcontracting and customer service to promote long-term successful projects. Ms. Murillo joined the GTH team in 2013 as Vice President of Multi-Family, tasked with managing the company’s multi-family housing inventory. Today, she leads the development team with site planning, contract coordination, project development and oversees the operation of Gardner Tanenbaum Holdings. Ms. Murillo attended Oklahoma State University at Oklahoma City.
Ms. Murillo holds designations/affiliations from the Oklahoma Real Estate Commission as an active broker proprietor, Certified Defense Property Manager I & II – Institute of Real Estate Management/IREM/NAA, Commercial Real Estate Council (CREC), Oklahoma City Association of Building Owners and Manager (BOMA) and Certified Mediation Practitioner – Civil/Commercial Employment.
Since joining Gardner Tanenbaum Holdings in 2003, Erik Gumerson has been involved in over 30 projects totaling $173,875,500 and 2,316,000 square feet as Vice President of Construction. These projects ranged from aerospace developments, such as two MRO Hangers at WRWA and a corporate campus for Boeing, to numerous industrial concrete tilt up facilities ranging from 100k to 300k square feet. His residential portfolio includes four ground up new construction projects for garden style and “Big House” apartment homes, as well as two exiting high rise retrofit buildings. Mr. Gumerson has built multiple office buildings including smaller, condo style units, existing building retrofits and Class A office space outs. Mr. Gumerson handles everything from the onset of lease proposal to designing the project, permitting to overseeing construction and finalizing the job at completion of occupancy. Mr. Gumerson attended the University of Oklahoma.
Matt Donovan, Vice President of Finance, has over 18 years of experience in finance and accounting, marketing, retails, sales and costumer service. Since joining the team in 2008, Mr. Donovan has been involved in the financing of over 15 development projects, where he contributes to the acquisition, transition of ownership and management. He has taken a leadership role in managing the company’s financial reporting to meet the requirements and analysis of evolving business activities. Mr. Donovan shows a passion and initiative to ensure accuracy and accountability of finances by creating numerous efficiency tools in order to streamline operations and ensure maximum effectiveness of the company’s finances. Mr. Donovan also collaborates with various financial institutions to expedite the funding of new projects and to ensure GTH remains in compliance of all loan covenants for both completed and ongoing projects. Mr. Donovan earned a Bachelor of Science in Business Management with an emphasis in Accounting from Baker University.
Natalie Johnson is a multifamily property operations leader with consistent success developing maximum occupancy, retention and revenue for Gardner Tanenbaum Holdings. Mrs. Johnson started her career with GTH nearly a decade ago as a concierge and throughout her career has worked in every multifamily role and at all multifamily locations providing her with an extensive knowledge of Class A high rise and resort style properties. Mrs. Johnson is a graduate of The Disney Institute’s Approach to Quality Service and believes that an outstanding resident experience is a critical component of multifamily success. She designed GTH’s robust resident services program and concierge training and ensures their implementation to continually improve daily operations.
Mrs. Johnson holds the designations from The National Apartment Association as a Certified Apartment Manager and a Certified Apartment Portfolio Supervisor.
Director of Multi-Family
Darrin Malone brings 27 years of experience in facility maintenance to Gardner Tanenbaum Holdings. Mr. Malone is responsible for all facilities management of GTH commercial properties. He maintains processes within the built environment with the purpose of improving the quality of life of the people and the productivity of the core business including environment, health and safety, fire safety, security, testing and inspections, building maintenance, cleaning, space allocations and operations.
Sr. Director of Facilities
Debbie Bruner brings over 13 years of experience in maintaining accounts payable, treasury management and human resources preservation to Gardner Tanenbaum Holdings. Ms. Bruner is responsible for all corporate, commercial, industrial and multi-family payables. She maintains over 3 dozen entities within GTH. In addition to the upkeep of day to day payable operations, she provides clerical support across all departments within the company, included but not limited to property insurance, tax liability and payments, permit submittal and payment benefits. Her knowledge of the process and attention to detail makes her an invaluable asset to the entire team.
Accounts Payable &
Jeff Mullins has assumed responsibilities for all day-to-day Accounts Payable and Accounts Receivable operations. Mr. Mullins assists in nearly every facet of GTH, from helping with presentations and marketing, to performing basic IT for the office. He has created numerous efficiency tools that have greatly enhanced daily operations, as well as making it easier for our customers to get the help they need. Prior to joining GTH, Mr. Mullins worked in a variety of industries that have given him a broad skill set. He spent 10 years as Accounting Manager for a local logistics company and five years working for an oil and gas services company, working his way from an AP Specialist to AP Team Lead. Mr. Mullins then became the Accounting Manager for an IT Managed Services company. He has a wealth of experience in a variety of different accounting software programs, including QuickBooks and MS NAV, as well as the entire MS Office suite.