Broker Associate

Photo of Keith McMahon
  • Cell 630.803.4150
  • Fax 630.448.4151
Naperville Office
836 W. 75th Street #112
Naperville, IL 60565

In 2009 I graduated from DePaul University with a degree in Real Estate Finance & Investment. Shortly after graduation I obtained my Real Estate license and went to work for a Real Estate Investment Firm. While working here I helped buy and sell over 6 million dollars of Residential Real Estate. Residential Sales has always been my passion, so in 2011 I decided to make it my full time job.

In 2012 I sold 107 homes, and 12.1 million dollars in Real Estate, putting me in the top 20 grossing Baird & Warner agents company wide. I also won the "Baird & Warner Rookie Of The Year" award. I have increased my volume every year I have been at Baird & Warner and have continually been one of the company's top producers.

I pride myself on exceptional service and a vast knowledge of multiple markets. I have sold homes from the far Western Suburbs to Chicago and everywhere in between. I am a life long Naperville resident and I have an extensive knowledge of the local market.

I have a unique blend of Real Estate experience. Whether it be first time purchases, income properties, foreclosures, luxury properties, or short sales, I have done it all and I am eager to share my expertise with my clients.


  • 2012 Baird & Warner Rookie Of The Year - Highest sales volume and units sold of any first year agent.
  • 2012 - 2016 Baird & Warner Founder's Club. 
  • 2012 & 2013 & 2014 Top 1% In Units Company Wide.



  • CNC

Reviews On Zillow

Average Rating

(View All 38 Reviews)

"What can I say...Keith is awesome! He made the home buying process as simple and smooth as possible. He knows the market and worked extremely hard to find a home that fit my family's needs. What was impressive is how responsive he is. He always returned our phone calls, text messages, and emails extremely fast. If you're thinking of buying or selling a home I would highly recommend you hire Keith."


by bradjohns584

"We found ourselves in an out of state relocation because of work and we can’t stretch enough how lucky we were to find Keith and to have him as our agent. Throughout all the process, all the uncertainty, doubts and stress that always comes along with the selling of a house, he was there to help us, guide us and advise us wisely.
Keith excels at his work; he is very knowledgeable on real state and the market, delivers as promised, pays a lot of attention to detail and is always very professional. He works very well with technology and that allows him to provide very fast services. But in our opinion, the best thing about Keith is that he truly cares about the client and wants to give his customers the best experience possible during the overwhelming process of buying/selling a house. Keith listened to our concerns, our expectations and even our complaints, and always came up with a good advice or a good idea
Keith made it possible to sell our house in record time and helped us get all the paperwork ready and in time for the relocation to be processed. He went above and beyond our expectations and helped us when he really didn’t have to, we won’t forget that thanks to him we were able to head to our new house with peace of mind. We highly recommend him, we would definitely work with him again if we return to Illinois!"


by zuser20160923034122637

"Keith had helped my husband and I find and purchase our home in plainfield, il. We were very impressed with Keith from the start, he listened to our needs in a home, before even meeting in person, he emailed us over a huge list of homes that he thought we would like ! When meeting, very organized and accommodating with our schedule ! Every time we walked into a home, he gave us his honest opinion and things that he noticed in the home, that we did not notice ! Great to know he is in it to find us the right home, and not just to make a sale ! Very knowledgeable about each area we looked in ! I would most definitely recommend Keith again ! We relocate with my husbands company quite a lot, and he is by far my favorite realtor we have dealt with !"


by amber keys

"If you are considering buying or selling a house in DuPage County, you need Keith McMahon! I've worked with several realtors recently to both buy and sell, and he is by far the best. He knows the area, is extremely responsive (almost always returns calls, emails and texts within the hour) and never hesitates to step outside the box to make sure his clients' needs are met. All that...and he's a really nice guy with a fun sense of humor."


by zuser20170706181121207

"We are new to the state and Keith was recommended from a client, couldn't ask for a better real estate agent!! Keith walked us through every single detail about state laws and guidelines we knew nothing about considering the laws are different in every state. He is a very knowledgeable agent and it's a plus because he's from the area! Keith was accessible 24/7 and that was huge for us because we lived at a different state and traveled back and forth at the time! We knew we were in good hands! He was very patient with us throughout the whole process! I highly recommend Keith and my husband and I would give him a 10 out of 10!! Thank you Keith for helping us purchase our beautiful home!!"


by user4026614