Mark Cytrynbaum

Mark Cytrynbaum, Principal
Mark earned undergraduate and graduate degrees in accounting and tax from McGill University and the University of Illinois respectively. In 1986, he began his professional career as a CPA for Arthur Young & Company (predecessor of Ernst & Young). Shortly afterward, Mark acquired his first property on Denver’s Vine Street, raising the equity by refinancing his car. He co-founded the company that ultimately evolved to be Old Vine Property Group. Since 1988, Mark has been the principal in charge in the acquisition and redevelopment of more than 2 million square feet of commercial real estate valued at over $150 million.

Accounting and Finance


Jill St. Onge, CPA, Controller
A member of the executive team since 2000, Jill directs all company financial planning and budgeting functions, prepares all financial statements and provides analyses of monthly accounting operations. She also prepares all information for annual company tax returns, coordinates debt financing, oversees the accounting department and all other daily finance operations. Jill is responsible for all Human Resources and Benefits Administration. She is a licensed certified public accountant in the state of Colorado and earned a bachelor of science in accounting. Jill has been in the commercial real estate finance field since 1998.
Caley Goehring, Accounts Receivable/Lease Administrator
Caley joined the team in October 2019, her primary responsibilities include managing accounts receivable activity, assisting the controller with annual property budgets and operating expense reconciliations. Caley creates abstracts for new leases as well as all renewals, modifications and expansions. She assures compliance of all tenants’ insurance requirements and assists Old Vine counsel with various legal matters.
Judy Kammerzell, Accounts Payable/Office Manager
Integral to our team since 2016, Judy keeps Old Vine operations running smoothly by coordinating office communications and handling accounts payable. She has been in the accounting field since 2005, and has experience with accounts receivable, accounts payable and payroll. Judy earned a bachelor’s degree in business administration from Colorado State University.

Facility Management and Construction

Kurt Weidmann

Kurt Weidmann, Director of Property Management
Since 2001, Kurt’s primary responsibility has been to enhance the value of Old Vine’s property portfolio. He acts as the liaison between owners, architects, tenants and contractors to assure that the intended vision for a project is properly implemented during the construction process. Kurt earned his bachelor’s degree in economics from Colorado State University in 2001, and his master of business administration from Webster University in 2004.

Israel Pacheco

Israel Pacheco, Engineer
A former facility engineer, Israel has served as property manager for Old Vine’s Houston portfolio since 1999. His decades of hands-on experience spans HVAC systems, building management, repair and maintenance of water chilling units, cooling tower operations, electrical distribution, pneumatic and display data channel operations, and fire alarm and suppression systems. He holds a Houston maintenance electrician license, boiler operator license, universal chlorofluorocarbon certification license, and is a Carrier certified technician. Israel has taken numerous courses in mechanical, boiler and electrical engineering maintenance.

Michael Riggs

Michael Riggs, Facilities Manager
Since 2008, Michael has worked to maintain and enrich the physical aspects of Old Vine’s Colorado portfolio. He manages all maintenance subcontractors and strives to assure that Old Vine properties are clean, safe and inviting. Prior to joining Old Vine, he worked as an engineer at the Denver Data Center for eBay where he maintained the building’s remote terminal units, computer room air conditioning units and server power supply room.

Asset Management and General Counsel

Neile Neider

Neile Neider, Director of Tenant Relations & General Counsel
Neile joined the Old Vine Property Group team in late 2009 and serves as asset manager for portfolios as well as general counsel. In her legal capacity, Neile negotiates a variety of agreements such as letters of intent, listing agreements, leases and other business contracts. She also serves in an operational capacity by managing leasing operations and by working closely with tenants to not only ensure the success of the Old Vine portfolio, but to encourage and assist in the success of our tenants. Neile has been in the real estate arena since 1996. Prior to joining the Old Vine team, Neile practiced law in the real estate departments of several prominent Denver law firms where she represented local and national developers of retail and office properties as well as many national and local retail tenants.

Support Staff


Cody & Flurry, Cal, Lucy, Office Buddies
Meet our social directors who facilitate around-the-block meetings and back-scratching collaborations. We like what we do, and like to have fun while doing it!