Mark Kelner - Real Estate Broker

Mark Kelner - Real Estate Broker REALTOR® | Illinois & Florida
📍Chicago & Northwest Suburbs | Miami
United Realty Group, Inc.

Born and raised in the greater Chicagoland area, I'm Mark Kelner, a dedicated real estate broker with years of experience representing buyers, sellers, investors, and developers in both Illinois and Florida. From my early days, I've cultivated a deep passion for Chicago, getting to know every corner of this dynamic city inside and out. This profound local knowledge sets me apart and enriches every

transaction I handle. I hold a degree in Biology from Loyola University Chicago, which has provided me with a scientific and analytical approach uncommon in the real estate industry. My time at university not only deepened my understanding of the city's diverse entertainment, culture, restaurants, and nightlife but also gave me insights into how these elements can influence real estate values and the overall experience for my clients. Real estate is more than just a business to me; it's about guiding families and investors through one of the most pivotal journeys of their lives. It's deeply satisfying to support my clients from the first meeting to the final closing. Leveraging modern technology, I utilize the latest advancements in real estate to enhance every buying and selling experience. Aside from my professional life, I am committed to self-improvement and staying active through hiking, cycling, swimming, and engaging in community activities. I am passionate about contributing to Chicago's vibrancy, notably through my longstanding involvement with the Lisker Music Foundation, which supports the local music scene and provides scholarships and outreach programs. As a licensed real estate broker at United Realty Group, I service the City of Chicago and various suburbs including the Northwest, Northern, and Northshore areas, specializing particularly in Wheeling and Buffalo Grove. Our team at United Realty Group includes transaction coordinators, customer relations support, as well as social media and marketing experts, making the home buying process a seamless experience with our in-house lenders. Additionally, I am also a real estate agent with Nexus Realty Group in Florida, servicing areas from Miami to Boca Raton, with a focus on Miami-Dade areas like Aventura, Hollywood, Golden Beach, and Sunny Isles. Whether you're looking to invest, buy, or sell, I am here to provide a comprehensive, personalized service tailored to your real estate needs.

08/18/2026

16 homes sold. But I was here long before there were homes to sell. 🏗️🔑

Insignia Glen II started as a dirt lot and a vision.

I had the opportunity to work alongside the developer, GCs, site managers and designers from the beginning, helping shape everything from layouts and finishes to how the project would ultimately meet the market.

That’s what made this one special. The design wasn’t an afterthought. Architecture, function and finishes all spoke the same language, and buyers noticed.

The result: all 16 homes sold.

Experiences like this are why I approach real estate differently. I understand the product, the construction, the contract and, most importantly, the market.

Whether it’s an entire development or a single home, I bring that experience to every sale. 🏡

Developing, selling or buying in Chicagoland? Let’s talk. 📲

Apparently “highly recommended” felt a little desperate.
08/16/2026

Apparently “highly recommended” felt a little desperate.

08/11/2026

Same address. Different house.

They gutted the kitchen. I walked in for the listing
appointment expecting the same kitchen I stood in at
the closing originally and stopped to realize they brought this kitchen into the next century.

It’s the kind of kitchen where the showing just stops,
because nobody wants to leave the island.

The rest of it:

🛏️ 4 bedrooms, 3 full baths
🚗 3 car ATTACHED garage. In a rowhome. Go try to
find a second one in this village.
🏠 New roof in 2025. Think savings on insurance.
🚪 End unit, so you get windows on three sides
🔥 Vaulted ceilings + fireplace + hardwood through
the whole main level
👗 Built-in closet system in the primary walk-in
🚶 Walk to downtown Roselle. Metra is a short drive.

I’ve now been on both sides of this address. I know
what it’s worth and I know what it sold for last
time.

Comment HATTENDORF and I’ll send the full photo set
and the number before it goes wide. 📩

📍 60 E Hattendorf Ave, Roselle IL 60172
Mark Kelner · United Realty Group · 847-899-9970.

Another one Under Contract at The Altgeld Club! 🏙️✨ I’m excited to announce that another beautiful condo at The Altgeld ...
07/01/2026

Another one Under Contract at The Altgeld Club! 🏙️✨ I’m excited to announce that another beautiful condo at The Altgeld Club in Lincoln Park, Chicago is officially Under Contract!

This isn’t my first success in this incredible building, I’ve had the privilege of helping clients sell here before, and it’s always rewarding to return to one of Chicago’s most sought-after communities.

Every building has its own market, buyer pool, and strategy. Having experience with previous sales in the area provides valuable insight when it comes to positioning a property for success.

If you’re considering selling your condo or home in Lincoln Park or anywhere on Chicago’s North Side, I’d be happy to discuss your home’s value and create a marketing strategy designed to maximize your results.

📲 Thinking about selling? Let’s talk.

Mark Kelner
Listing Agent
United Realty Group United Realty Group

🏡 JUST CLOSED! 🎉 Congratulations to my amazing buyer clients on the purchase of their incredible new home in Northbrook,...
06/30/2026

🏡 JUST CLOSED! 🎉 Congratulations to my amazing buyer clients on the purchase of their incredible new home in Northbrook, Illinois! This stunning custom-built two-story residence sits on approximately ½ acre in one of the area’s most sought-after neighborhoods, and I’m proud to share that I was able to negotiate the purchase for under the list price, creating immediate value from day one.

Helping my clients navigate a competitive luxury market and securing the right home at the right price is what it’s all about. Thank you for trusting me to guide you through such an important milestone. Wishing you countless happy memories in your beautiful new home!

If you’re thinking about buying or selling, I’d love the opportunity to help you achieve your real estate goals.

📲 Ready to make your next move? Let’s connect!

What a journey it has been! Today marks another closing at Insignia Glen 2 in Des Plaines, and I couldn’t be more gratef...
06/26/2026

What a journey it has been! Today marks another closing at Insignia Glen 2 in Des Plaines, and I couldn’t be more grateful.

When I first walked this site, it was nothing more than dirt, gravel, and a vision. Watching that vision transform into a beautiful community has been incredibly rewarding, and I’m honored that my seller clients trusted me to help lead this project from the ground up all the way to the finish line.

What an incredible milestone! Of the 16 townhomes, 7 have officially closed, 8 are under contract, and only 1 home is still available.

Insignia Glen 2 consists of 16 luxury tri-level townhomes across 4 beautifully designed buildings (4 homes per building). Each residence offers:
🏡 3 Bedrooms
🛁 3.5 Bathrooms
✨ Every bedroom features its own private ensuite bathroom
🐾 Pet-friendly community
💼 Investor-friendly
💰 Low HOA

Seeing families move into these homes and watching this community come to life has truly been one of the highlights of my career.

A heartfelt thank you to my seller clients for placing your trust in me throughout this incredible journey, and congratulations to every buyer who is now part of the Insignia Glen 2 community.

One home remains, Lot 16. If you’ve been waiting for the opportunity to own a brand-new townhome in Des Plaines, now is the time!

Listing Agent: Mark Kelner Mark Kelner | Chicagoland Realtor
Listing Brokerage: United Realty Group United Realty Group

Comment below or DM for more info!

*Equal Housing Opportunity*

🏡 OPEN HOUSE THIS WEEKEND!Be among the first to tour this stunning completed new construction corner townhome at Insigni...
06/25/2026

🏡 OPEN HOUSE THIS WEEKEND!

Be among the first to tour this stunning completed new construction corner townhome at Insignia Glen 2 in Des Plaines.

✨ 3 Bedrooms | 3.5 Bathrooms
✨ Approx. 1,897 Sq. Ft.
✨ Every bedroom features its own private ensuite bathroom
✨ Heated attached 2-car garage
✨ Smart refrigerator & premium appliance package
✨ Private balcony
✨ Dual-zoned HVAC
✨ 1-Year Builder Warranty

📅 Open House
Saturday, June 27 | 1:00 PM – 3:00 PM
Sunday, June 28 | 1:00 PM – 2:00 PM

📍 Address: 186 N. East River Road, Des Plaines, IL 60016

🚨 IMPORTANT: To locate the property, enter 180 N. East River Road, Des Plaines, IL 60016 into Google Maps or Apple Maps. The home address is 186 N. East River Road, but GPS should be set to 180 N. East River Road to reach the community entrance.

Questions or would you like to schedule a private showing? Contact Mark Kelner at (847) 899-9970 or [email protected].

Equal Housing Opportunity.

Details regarding this weekends open houses in Des Plaines, IL! Click to learn more.
06/25/2026

Details regarding this weekends open houses in Des Plaines, IL! Click to learn more.

Open House This Weekend New Construction Corner Townhome in Des Plaines 186 N East River Road, Des Plaines, IL 60016 Offered at $539,990 3 Bedrooms 3.5 Bathrooms 1,897 Sq Ft 2-Car Garage You’re Invite

Two days ago, 3,300 Chicago homes vanished from Zillow overnight.Most buyers didn’t notice. Most agents won’t say anythi...
05/22/2026

Two days ago, 3,300 Chicago homes vanished from Zillow overnight.

Most buyers didn’t notice. Most agents won’t say anything.

Here’s what’s actually happening — and the bigger secret nobody’s talking about. ↓

(Swipe through first.)

Even after the lawsuit gets sorted, Chicago has a hidden listing network 43,000 agents share privately. Zillow has never been part of it.

I am.

If you’re buying in Chicago, the northwest suburbs, or anywhere MRED covers — your Zillow search is incomplete. By a lot.

Want this week’s hidden listings?
Comment HIDDEN below and I’ll DM you what Zillow can’t show you.



Mark Kelner | Arlington Heights & Chicago Real Estate
Licensed | MRED Member

Address

725 E Dundee Road, Suite 201-B
Arlington Heights, IL
60004

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