Your Local 

Real Estate Expert

Find your dream home with our powerful property search tool!

REALTOR®

Mary Keller

Meet Mary Keller, a lifelong resident of Western Pennsylvania. Born and raised in Tarentum, Mary has a deep understanding of the local real estate market. After spending the early years of her career in Pittsburgh's Shadyside, Morningside, and Cheswick neighborhoods, she and her husband Bill moved to Lower Burrell where they raised their two boys. They later relocated to Sarver before spending a few years in Sarasota, FL and finally settling in Oakmont, where they have lived for the past decade.

Send a message
mary-headshot

Before becoming a Realtor®, Mary honed her skills in healthcare, starting as a Radiologic Technologist and eventually becoming Manager of Radiology at Shadyside Hospital. She then transitioned into the Healthcare Information System arena where she excelled in managing resources, projects, and client relationships. These experiences have provided her with a strong foundation for her successful transition to real estate. With a keen eye for detail and a commitment to delivering results, Mary is experienced in meeting client expectations, communicating effectively, and making the buying or selling process as seamless as possible. Her expertise in technology also allows her to effectively market homes in today's digital environment.

As a member of the Realtors® Association of Metropolitan Pittsburgh (RAMP), Mary is committed to upholding the highest standards of professionalism and integrity in the industry. She is a proud graduate of Highlands High School and holds an associate degree in Science from Penn State University, as well as a bachelor's degree from LaRoche College. Mary's training as a Radiologic Technologist was completed at Shadyside Hospital.

Mary is proud to be affiliated with the John Marzullo Group, a top-performing real estate team with over 25 million dollars in sales and an impressive record of selling over 125 homes each year. With a drive to help her clients achieve their real estate goals, Mary will work tirelessly to ensure a smooth and successful transaction. Contact Mary today to learn how she can assist you in reaching your real estate dreams.

Discover hidden local gems

Communities

View all

In the words of my clients

Success Stories

"Donus worked with us to help us buy our first house, and we couldn't have asked for a better guide through the process. What I appreciated most was his calm demeanor and straightforward approach whenever we felt unsure. He made us feel genuinely conf
"My fiance and I are first time home buyers and worked with Donus Crawford throughout our process, from browsing to closing, in Pittsburgh. At first, since we were looking from out of state, we were nervous that we would not be able to find the perfe
"My husband and I worked with Gunnar to buy our first home, and we were happy with both the experience working with him and the home we ended up with. We decided to submit an offer pretty last-minute - not once but twice - and both times, Gunnar worke
"As a first time home buyer, Eddie made this experience as stress free as possible! He was always available to help me answer any question I had, truly taking the time to understand what I wanted. He helped every step of the way and also helped connec
read all

Is it a good time to sell?

How Much is your home really worth?

Get your home value

Explore Our

Exclusive Listings

View all
No listings found.

Ready to take

The next step?

Not sure if now's the right time to buy or sell? Need a reliable contractor? I would love to get to know more about you and your needs!