Ari Topper, CFA
Managing Director / Broker

Ari is a seasoned and respected commercial real estate broker with nearly 20 years of experience practicing real estate. Born and raised in the Chicago area, Ari joined Baum Realty in 2018, specializing in investment sales brokerage, commercial leasing, and investment advisory services. His firm grasp on real estate finance and underwriting, combined with his advanced interpersonal skills make Ari a rare “double threat” in the brokerage world. Ari has experience with a wide variety of property types such as multi-family, retail, office, and industrial and has represented sellers, buyers, landlords, and tenants in his career.

Ari holds the highly regarded Chartered Financial Analyst (CFA) designation, the LEED-AP designation, and is a licensed real estate salesperson in the State of Illinois. He earned his Bachelor of Business Administration degree from the Stephen M. Ross School of Business at the University of Michigan with a concentration in finance.

Tyler Dechter
Senior Associate / Broker

Tyler joined Baum Realty in March 2018 and works on both leasing and sales assignments for Baum Realty’s Urban Office & Flex and Investment Sales Divisions. A vital team member, Tyler has made key contributions to multiple successfully completed sales and leasing transactions. Tyler’s primary focus is on all aspects of property due diligence and underwriting. Additionally, he provides landlord representation services and market analysis to a portfolio of office and flex-industrial properties throughout the greater Chicago area.

Prior to joining Baum Realty, Tyler held an analyst position at Simon Property Group (NYSE: SPG). During his time at Simon, Tyler prepared lease analysis on rent spreads, occupancy, kick-outs for key retailers, and prepared all applicable bills in accordance with lease terms and resolved tenants’ problems regarding billings and lease language.

Tyler is an active member of ICSC, Urban Land Institute (ULI), Young Real Estate Professionals (YREP), and The Junior Council of Lurie Children’s Hospital. Tyler is a licensed Illinois Real Estate Broker.

Tyler was born in Northbrook, IL and graduated from Butler University, earning his bachelor’s degree in finance. When not in the office, Tyler can be found on the golf course or spending time with family and friends.

Owen Wiesner
Associate / Broker

Owen joined Baum Realty in June 2021. As a member of the firm's Investment Sales and Urban Office & Flex teams, Owen provides significant contributions to current leasing and investment sales assignments including conducting due diligence, market research, and proactively seeking out new business opportunities.

Prior to joining Baum Realty, Owen interned at CapRock Real Estate on the acquisitions team where his primary focus was finding investment grade multifamily buildings in secondary and tertiary markets that met acquisition criteria. This included conducting demographic market analysis, due diligence, and interfacing with owners and brokers to establish meaningful connections.

Owen is an active member of the Real Estate Investment Association (REIA) and the DePaul Real Estate Alumni Alliance (DREAA).

Owen graduated from DePaul University’s Driehaus School of Business, earning a bachelor’s degree in real estate with a minor in photography. When not in the office, Owen enjoys his free time spent biking, golfing, and skiing.