Ari Topper, CFA
Principal / Broker

Ari Topper is an accomplished commercial real estate broker with nearly two decades of industry experience. A lifelong Chicagoan, Ari joined Baum Realty in 2018, where he specializes in investment sales, commercial leasing, and investment advisory services. Known for his deep expertise in real estate finance and underwriting, coupled with strong interpersonal and negotiation skills, Ari brings a unique combination of analytical acumen and client-focused service to every transaction.

Throughout his career, Ari has worked across a diverse range of property types—including multifamily, retail, office, and industrial—and has successfully represented sellers, buyers, landlords, and tenants.

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

Tyler Dechter
Vice President / Broker

Tyler Dechter joined Baum Realty in 2018. A vital team member, Tyler works on middle market investment sales assignments throughout the Midwest and has made key contributions to multiple successfully completed sales and leasing transactions.

Primarily focused on live-bid online auction transactions, Tyler also works on traditional sales assignments and provides all aspects of property due diligence and underwriting as well as landlord representation services and market analyses to his client base which includes private equity and debt funds, banks, family offices, corporations, and individuals throughout the country.

Prior to joining Baum Realty, Tyler worked at Simon Property Group (NYSE: SPG). Tyler is an active member of the Commercial Real Estate Finance Council, ICSC, Urban Land Institute, and The Junior Council of Lurie Children’s Hospital. Tyler was named a top 25 Ten-X broker expert nationally by volume in 2021 and was awarded the CoStar Power Broker award in 2020. 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
Senior 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.