Realtors® Columbus Ohio

Passion for helping people find a house they can make into a home.

CASTO Residential Realty works with home buyers and home sellers throughout Central Ohio. We are committed to providing clients “small business” attention while leveraging our “big business” roots.


Buy A Home     Sell My Home

Justin Bird, Broker/REALTOR

Justin Bird

REALTOR® / Broker  |   (614) 744-2098    |    Email Justin

I strive to understand my clients and empower them to make the best real estate decisions.

I make the process of buying and selling a home or property as simple, enjoyable and understandable as possible. Whether it’s negotiating a deal until 3 a.m. (which has happened) or pushing inspectors to perform more comprehensive testing on suspect issues (has also happened), I pride myself on delivering for my clients. I’m here to serve you.

For the past 15+ years in the Central Ohio real estate industry, I have gained invaluable knowledge and resources that allow me to tailor my sales and marketing approach to meet the needs of my client. I live where I sell and buy, love my job, and stay up to date on trends in the Columbus and national markets so that I can continuously improve on my skills and services.


“Justin is extremely helpful with every aspect of real estate. He made buying my first house completely stress free. He is very knowledgeable about the entire process, and makes sure you understand every step along the way. I would highly recommend Justin to anyone I know!”

Joan Pfitz

John Mahon, Managing Agent/REALTOR

John Mahon Jr.

REALTOR® / Managing Agent  |   (614) 354-1272    |    Email John

I constantly challenge myself with new ventures to help find the perfect homes for clients and the best-suited properties for investors.

I believe it is important to have a widespread and diverse knowledge of the Columbus market to meet my client’s expectations. I aim to pair clients with the ideal home at the correct price point and find premier properties for investors that suit their needs and lifestyle aspirations.

To me, being a REALTOR® isn’t just a career path, it’s in my blood. Real estate runs in my family, so I have been around this industry my entire life. As a professional REALTOR® I instill the practices that I’ve learned while managing my family’s investment real estate portfolio into each and every deal. I’m willing and able to go to bat for my client. Nothing is more gratifying to me at the end of a long day than fulfilling my clients’ dreams of homeownership. I believe that being a REALTOR® isn’t a job; it’s a lifestyle. I am available day and night to my clients ― no amount of communication is too much communication! I am proud to say that my clients get what they want!


“John Mahon completely turned our homebuying experience around from the first realtor we had. We couldn’t be happier that we found him, and because we went with a CASTO realtor we got a rebate from having rented with CASTO. John was extremely communicative and responsive, he was always very proactive throughout the process as well. His experience was evident from the beginning and he was clearly very knowledgeable when answering our many questions. He also didn’t just tell us what he thought we wanted to hear ― he was genuine and honest ― and when he didn’t know the answer he was honest and helpful about getting one. We never once doubted that he had our best interest in mind, and his negotiations during closing made this even more obvious. We found a place we love and got a great price even in a crazy market!”

Ashley Siska

Michelle Umaña | Realtor®

Michelle Umana

REALTOR®   |   (614) 907-1455    |    Email Michelle

I love the process and challenge of finding the perfect fit for each client.

I use a direct and no-nonsense approach while keeping the process fun throughout the exciting time in my client’s life. I am extremely responsive and always multitasking. “No” is not an option for me, I find a way and get things done!

I have a legal background and am a practicing attorney as well as a REALTOR® so that makes me an all-around professional advocate and negotiator. I’m an expert at helping buyers figure out what they are looking for by asking the right questions, listening, and giving knowledgeable, personalized advice. Being flexible and presenting a diversity of options within a client’s budget is what I take pride in. Ready for a fixer-upper? I have the ability to see the potential in homes that might need some extra love for clients who are looking for a property to renovate.

I enjoy keeping in touch with clients even after closing, so feel free to reach out to me with questions about the area, suggestions for who to call for new carpet, and other cosmetic updates or repairs. I even have a client who continues to reach out for advice on the renovations she’s doing to her place ― paint colors, whether to enclose the stairs, how to finish the floors, the kitchen cabinets, etc.! I’m here to help my client through the home buying process and beyond.


“Michelle was unbelievably helpful from the minute I contacted her about my interest in purchasing a home. She understood what type of home I wanted and provided useful suggestions along the way. Besides her very approachable personality, the characteristics that really stood out to me was her willingness to accommodate and her responsiveness. Michelle was willing to schedule house visits within the hour of me letting her know I was interested in a home, and she always promptly returns calls and e-mails. I would recommend her to anyone interested in buying in the Central Ohio area!”

Joe Perruzzi

Crystal Leukart, REALTOR

Crystal Leukart

REALTOR®   |   (614) 429-7451    |    Email Crystal

I pride myself on always having open communication and exceeding my clients’ expectations.

I love the task of finding the perfect home! Seeing my client’s dreams come to life puts a smile from ear to ear on my face. As a REALTOR®, I put great effort into making the entire process as smooth as possible and integrate seamlessly with my clients preferred lenders and other service providers.

Being a REALTOR® for more than 10 years and spending the vast majority of my career at CASTO, I can say for a fact that although our team may be small, we go the distance for our clients. A home purchase is typically the biggest purchase someone makes, so I see it as my job to go above and beyond for my client while making the process fun and exciting.

I became a REALTOR® because I truly love helping people find their dream homes, it is a wonderful field to be in, and it runs in my family. My husband remodels homes and I often work with him on those projects as well. There are countless possibilities when you take a great framework and make it a beautifully customized design. So, if you are looking for help to visualize the perfect fixer-upper, I’m your girl!


“My experience with this Realty has been great. My realtor “Crystal” was very patient with us as a first time buyer and was always there to answer our questions our concerns. Never felt pressured to make decisions, and she listened to what we were looking for… she was honest, caring and above all professional.”

Noemi Torres

Jenn Russell | Realtor®

Jenn Russell

REALTOR®   |   (614) 507-4495    |    Email Jenn

I enjoy collaborating with clients to help find solutions that align with their real estate goals.

In 2019, I obtained my real estate license. I love the challenge, excitement, and connection to the community real estate offers. I have experience researching real estate industry policies and market trends while executing the loan process as a former mortgage loan officer. I pay attention to detail and provide the highest level of communication to my clients. My main focus as a real estate agent is connecting buyers not to just any home, but to the RIGHT home. Buying a house is a huge investment and tedious process, and I want to make sure the buyer loves what they are going to walk into each day.

My favorite part as a REALTOR is calling my client and telling them they won the bid. I truly love hearing the joy in their voices as they become one step closer to being a homeowner. I also love seeing the “before” and “after” pictures when a client moves in and has made the house their own.  Home buying is more than a place to live, it’s a milestone into your next phase of life, and that is such an exciting journey!

Whether you are relocating to the Greater Columbus area, or finding a new place to call home, I’d love to help you with your home buying or selling journey!



“Jenn is amazing!! She’s knowledgeable, personable and goes above and beyond for her clients. She’s always available and does a wonderful job at communicating. I was extremely pleased with Jenn as my realtor. HIGHLY recommend!!”

Casey Cartnal

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