GREYSTONE REALTY - Key Persons


Andrew Stack

Job Titles:
  • Broker
Andrew Stack has been involved with real estate in various capacities since 2008 including residential leasing, management, general contracting, and as a mortgage loan officer. Andrew comes from a consultative sales background, having been with BMW for 7 years where he learned truly listening and understanding the needs of his clients takes precedence. He decided to leave auto sales to pursue his passion for real estate. After trying out many different facets of the real estate world, it was time to go all in and make the jump as a full time broker. Bringing a wide breadth of experience to the role helps connect to his clients and see things in a different light, while focusing on providing the best possible service, professionalism, and attentiveness to detail. Andrew graduated Augustana College with a Bachelor's degree in Business Administration with minors in Management, Marketing, and MIS. His goal is to bring an investment mindset to his clientele and address issues from unique angles to help provide value and aid in decision making. When he's not helping clients buy or sell, he's with his wife exploring the world, scuba diving, or snowboarding in Colorado where they lived for three years.

Brian DeSimone

Job Titles:
  • Broker
Brian DeSimone joins Greystone Realty with the experience of owning and operating a creative small business with his fiancé, Ashley. Over the past ten years, through their company, they have traveled and hiked all over the world, capturing videos and photos of people, places, businesses, and once-in-a-lifetime events. That work is how Brian landed in real estate: he has designed, photographed, and filmed properties and agents in the industry for over seven years. Brian's approach is simple: lead with knowledge, humility, and kindness. Being in multiple industries, he believes in the power of work ethic combined with preparation, values integrity and treating people with respect and compassion, and trusts the solutions that creativity and open-mindedness yields. He brings the discipline of a former college athlete, the client-oriented perspective crucial to owning a small business, and the curiosity of a professional creative to be the best agent he can be. With a real estate investor approach, Brian believes that substance, not flash, is the core of a successful client experience in the Real Estate industry.

Dannielle Beauchamp

Job Titles:
  • Broker

Dennis Degelmann

Job Titles:
  • Broker

Jason Wagner

Job Titles:
  • Owner
  • Designated Managing Broker & Owner
Jason Wagner is the Owner/Founder of Greystone Realty, Managing Broker, and the team lead for the Wagner Group. Prior to launching Greystone Realty, Jason was a top producing realtor for Kale Realty, finishing #4 of 709 brokers for total sales volume in 2020. As an active real estate investor, Jason has renovated a wide range of homes in Chicago ranging from gut rehabs to new construction additions, while acting as a licensed general contractor during his projects. Jason has also built a small rental portfolio on the Northwest Side of Chicago and has firsthand experience of managing his own properties. Jason has a true passion for real estate and left his Corporate Finance job at Allstate Insurance in 2016 to start his new career as a real estate professional. With bachelor's degrees in Finance and Accounting from Augustana College, Jason utilizes his analytical skills to constantly be on top of quickly changing markets. Between Jason's construction experience, investor background, financial skillset, and his network of trusted real estate partners, Jason brings unique and invaluable service to his clients. Jason's mantra is "if the client did not learn something on each and every meeting with me, I did not do my job.

Jennie Berger

Job Titles:
  • Broker
  • Co - Founder of Property People
Jennie is the Co-Founder of Property People along with her partner Gregory Kyler. Licensed General Contractors, the house flipping duo specialize in residential redevelopment and new construction. Jennie is a wanna-be-designer with a deep passion for people, traveling, sand volleyball, yoga, and creating new plant based dishes. She grew up in Hoboken New Jersey and has the bestest 13-year old Westie named Chief.

Jordan Warner

Job Titles:
  • Broker

Kyle Feldballe

Job Titles:
  • Broker

Levi Kane

Job Titles:
  • Broker

Rachel Wagner

Job Titles:
  • Business Development Manager

Stephen Santos

Job Titles:
  • Broker

Tracy Graffeo

Job Titles:
  • Broker

Wade Germann

Job Titles:
  • Broker
  • Real Estate Agent
Wade is a Real Estate Agent that has no fear of getting his hands dirty. Wade's passion for Real Estate came from buying and renovating his own house in 2019, and he has since become a self proclaimed YouTube Expert Level DIY-er. Seeing a property develop from concept to finished product fascinates Wade and keeps the passion alive. Wade currently works for the Indiana Army National Guard, and has had a long career of 13 years now with them. Wade wants to provide the top service he can to his fellow service members, and make sure they are getting the best buying or selling experience possible. In his free time, Wade enjoys long walks with his two German Shepherds and his Wife to any Taco stand/truck/restaurant he can get to.