Berkshire Hathaway HomeServices Chicago

1800 N.Clybourn Ave, Chicago, IL 60614
  •   5   (25 reviews)

Meet the team

Get to know the 146 agents at Berkshire Hathaway HomeServices Chicago.

Andrea Geller
Andrea Geller

Broker

  4.9   (7 reviews)
About Andrea
Andrea Geller works as a residential real estate broker with Berkshire Hathaway HomeServices Chicago. Her client base ranges from urban city dwellers to buyers and sellers in the surrounding suburban areas. A life long Chicagoan, she specializes in neighborhoods throughout Chicago and its suburbs including the North Shore and Northwest Suburbs Andrea continues to grow her knowledge and expertise through transactional experience and ongoing professional development. The scope of transactions Andrea has been involved with in her 20 plus years as a real estate professional include resale properties and development sales. Her long list of resales include condos, single family homes and multi-unit buildings. Development representation has ranged from smaller scale projects to large multi unit new construction and condominium conversions. Her role has included marketing, sales and finish selection. She has been acknowledged for her sales accomplishments for both units sold and dollar volume. In addition to her sales expertise, Andrea has experience in brokerage management and training. She has participated in a variety of aspects of the real estate industry over the years including at the local, state and national levels of the Realtor Association and the Women's Council of Realtors. Her current appointments are serving as Vice Chair of the Mainstreet Association of Realtors Grievance Committee, Chair of their Vendor Advisory Committee and a member of the Illinois Realtors Public Policy and Government Affairs MIG. Andrea is a featured speaker at industry events including at Inman Connect and Brokerage events. She has been interviewed for a variety of publications as a result of her vast experience in the real estate industry. Andrea's industry acknowledgements include Chicago Agent Magazine's 2021 Who's Who in Chicago's Residential Real Estate. In 2015 she was in the  Swanepoel Power 200 as one of the top 20 Social Influencers in Residential Real Estate. In 2018 she was acknowledged by Inman News as one of their Innovator Award finalists for most Innovative Real Estate Agent.
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About Mario
Born and raised in Chicago, Mario Greco came to real estate by way of engineering and law. He graduated with honors from both Northwestern University (with degrees in Chemical Engineering and Environmental Engineering) and Boston University School of Law. He practiced law for several years at Jones Day and Kirkland & Ellis in Chicago in their Intellectual Property Litigation departments. While practicing law full time, he started his own real estate brokerage firm and sold an average of $9M worth of real estate a year on a part-time basis. Since then, Mario’s business has grown significantly while partnering with companies such as Century 21 Sussex & Reilly, Prudential Rubloff Properties, and now BERKSHIRE HATHAWAY HomeServices Chicago. Throughout his career, Mario has consistently proven to be a top producer. He has been recognized as being in the top 1% of Chicago Realtors® every year since he started selling real estate in 2002, and his total sales have already amounted to nearly $2 BILLION. Mario and The MG Group have been ranked Top 50 in the Nation every year by The Wall Street Journal since 2011, have been recognized as a Notable Residential Broker of 2019 by Crain’s Chicago Business, and were awarded Best Team in 2019 and Best Agent Website in 2020 by Chicago Agent Magazine. Mario has been the city’s top producer in key neighborhoods over the years such as Lincoln Park, Lakeview, Lincoln Square, Andersonville, Edgewater, Wrigleyville, Irving Park and Old Irving Park, Avondale, Sheridan Park, Buena Park, Uptown, Ravenswood, Roscoe Village, St. Ben’s, North Center, and Bucktown/Wicker Park. As the founder and leader of The MG Group at BERKSHIRE HATHAWAY HomeServices Chicago, Mario oversees all pricing strategy, marketing plans and buyer/seller negotiations for all Group clients, and ensures that the Group operates with market-leading expertise and optimum efficiency. He is proud of The MG Group’s widespread recognition for their unique ability to deliver both speed and value to their clients throughout every real estate transaction.
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About Maria

Maria has 3 sold property listings over the past 12 months.

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About Akos

Akos currently has 6 active property listings and 5 sold property listings over the past 12 months.

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About Cyrus
Cyrus joined The MG Group in 2016. He was born and raised in Chicago and the Northwest suburbs, and spent much of his childhood alongside his father rehabbing apartment buildings and single family homes. Cyrus graduated with a Bachelor of Science from Loyola University Chicago, and later attained a JD from Loyola’s School of Law with a focus in real estate. Since 2004, Cyrus has focused on commercial and residential sales, leasing and management alongside 10 years of experience as a loan originator and processor, and brings an “all-bases-covered” approach to his clients to insure the highest quality of representation. Cyrus lives with his wife and kids in Norwood Park and spends his free time playing tennis and golf, along with enjoying the fine dining and entertainment the city has to offer.
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Berkshire Hathaway HomeServices Chicago

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About us

Berkshire Hathaway HomeServices Chicago is a real estate office. They have 25 verified reviews with an average rating of 5 stars. They currently have 278 active property listings and 664 sold property listings over the past 12 months worth $430,126,718.

Our reviews

  5  
24 reviewsacross 16 different locations, showing 6.
9 months ago
Review of Peter Xantheas and MG Group

From the beginning Peter has made the experience of selling our home easy. He explained the process and made sure my family was informed of every showing. He was especially patient with my mother and made sure she understood the whole process. The whole MG Group was great. Please use Peter and his group for your selling or buying needs.

The MG Group | Berkshire Hathaway HomeServices Chicago

The MG Group | Berkshire Hathaway HomeServices Chicago

  5   (6 reviews)
almost 3 years ago
Sold West Loop Condo

Mario and his team did a fantastic job taking pictures of my unit and their market strategy, along with having heavy traffic with showings throughout the entire listing. His team brings a tremendous amount of area and market knowledge. He not only brings new buyers, but also has a pool of people that are always looking for an investment to buy. With markets like today, you need someone like Mario to get top dollar for your place! I high recommend him and his team as they take control of the process from start to finish and it allows you to feel relaxed and not deal with all the stress. FIVE STARS ACROSS THE BOARD!

Mario Greco

Mario Greco

  5   (5 reviews)
almost 3 years ago
Amazing, professional, tenacious.

My experience with Thanh is nothing short of amazing. His proactive communication, work ethic and support throughout the entire process was invaluable. He went above and beyond to help me find the perfect home for me, and when we found it, he used his expertise, knowledge and professionalism to work with the sellers to get me the best possible outcome. I would recommend Thanh without reservation to everyone; he is truly amazing.

Thanh Tran

Thanh Tran

  5   (1 review)
almost 4 years ago
The MG Group are true experts and professionals

We originally contacted Mario because friends of ours had used him and the MG Group to buy/sell and had also noticed his signs around our Albany Park neighborhood. We also had been working with another agent in our search for a new home in the North Shore and it wasn’t working for a variety of reasons. When we first spoke with Mario he assured us that the MG Group would be able to help us sell our home in the city and buy a new home in the suburbs. Although skeptical at first, we could not have been happier with the result. Lehigh of the MG Group was tenacious, thorough and patient throughout the process and guided us to a home we couldn’t be happier with. On the list side, Mario gave us great advice on how to prepare our home for sale, where to price it and also had contractors at his disposal to enact the prep plan. We sold our home in just a few days with multiple offers for above our list price and we didn’t waste money or time doing unnecessary things to prepare it for sale. Mario assured us the market was brisk enough and our home was unique enough that we would be able to sell without renovating the home we had lived in and lovingly cared for for 30+ years. Once engaged, we felt comfortable from the very beginning of the process with Mario, Lehigh and the entire MG Group office staff which worked tirelessly (and seemingly around the clock) to see our deals get to the closing table without a hitch. We have sung their praises to our friends, family & coworkers, and we would urge anyone who wants to buy and/or sell in the city of the suburbs to contact Mario and the MG Group – they are true experts and professionals.

Mario Greco

Mario Greco

  5   (5 reviews)
over 4 years ago
Deep knowledge of both owner-occupied and investment property markets

We have worked with Cyrus Seraj at MG Group on both a purchase (single-family home) and sale (rental property) and both experiences have been phenomenal. Cyrus has a deep knowledge of both the owner-occupied and investment property markets and offered helpful guidance from start to finish. He guided us through our home purchase a few years ago, helping us land a dream home in our target Chicago neighborhood and then he helped us sell a rental property that was proving to be a poor investment (purchased through a different agent in the past). We can't speak highly enough of his help through both processes. My wife and I would encourage anyone to work with him.

Cyrus Seraj

Cyrus Seraj

  5   (2 reviews)
over 4 years ago
Cyrus is a true professional and expert negotiator

I cannot give enough praise for Cyrus Seraj and the MG Group for the handling of my condo sale in the Spring of 2021. From pre-listing through closing, the process was seamless. Prior to listing, Cyrus and the MG Group took the lead on coordinating contractors, cleaners, stagers, photographers, etc. to ensure the condo was in its absolute best showing condition. Once on the market, the team handled every showing and provided agent/buyer feedback immediately following an appointment. Within 4 days we had multiple offers and went under contract at full list price. I'm also very grateful for the professionalism and organization of the MG Group office staff who kept everything on track for closing and made the process so easy. Cyrus is a true professional and expert negotiator; I have no doubt his extensive knowledge of the market and guidance are what got us to the best possible outcome. If you're thinking of buying or selling, do yourself a favor and get in touch with the MG Group.

Cyrus Seraj

Cyrus Seraj

  5   (2 reviews)
Show all 24 reviews

Our properties

Berkshire Hathaway HomeServices Chicago has 278 properties for sale and sold 664 properties in the last 12 months, showing 4, sorted by most recent activity

For Sale
$449,900
506/1631 South Michigan Avenue
Chicago IL 60616
2
2
1
Condo
Listing courtesy of Berkshire Hathaway HomeServices Chicago
SoldMay 20, 2026
$1,450,000
1312 N Claremont Ave
Chicago IL 60622
8
7
2
Multi-Family
Listing courtesy of Fulton Grace Realty and Berkshire Hathaway HomeServices Chicago
For Sale
$749,000
12604 South Hillcreek Drive
Palos Park IL 60464
3
4
3
Single-Family
Listing courtesy of Berkshire Hathaway HomeServices Chicago
SoldMay 19, 2026
$390,000
4300 N Mulligan Ave
Chicago IL 60634
3
2
Single-Family
Listing courtesy of Berkshire Hathaway HomeServices Chicago and Realty Of America, LLC
Show all 942 properties
Berkshire Hathaway HomeServices Chicago
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