Mary Byrne

Q: 1. What types of clients have you worked with?

We love working with first-time home buyers, as we feel education is a crucial part of the home-buying process! We have a vast array of experience working with all kinds of buyers and sellers, including buyers looking from out of state and out of the country, as well as sellers who own in Philly but do not live in the city.

Simon Sells Philly

3 Years of Experience

(11)

Total Sales Last Year

Years of Experience

120

Recent TransactionsTransactions from the last 3 years

$424.3K

Average Price Point

Service Areas

Ardmore, PA Bala Cynwyd, PA Berwyn, PA Broomall, PA Bryn Mawr, PA Cheltenham, PA Clifton Heights, PA Conshohocken, PA Darby, PA Devon, PA Drexel Hill, PA Edgemont, PA Elkins Park, PA Gladwyne, PA Glenolden, PA Haverford, PA Havertown, PA Lafayette Hill, PA Lansdowne, PA Malvern, PA Media, PA Merion Station, PA Morton, PA Narberth, PA Paoli, PA Philadelphia, PA Springfield, PA Upper Darby, PA Villanova, PA Wayne, PA West Chester, PA Wyncote, PA Wynnewood, PA

View All Service Areas

About Mary Byrne

I work as the licensed Operations Partner for Alison Simon, who is a true expert in the Philadelphia market.

She hates to brag, but I will do it for her! She's the #1 agent in the biggest brokerage in the region; she was ranked by Real Trends as the #3 agent in the city and the #24 in the entire state, regardless of brokerage, and she's AMAZING at client care.

I don't know any other employee who gushes about their boss but Alison really is the best in the business.

Credentials

LICENSE

Real Estate - Pennsylvania - # RS370995

Specialties

Buyer's Agent
First Time Home Buyers
Investment Properties
Listing Agent
Property Management
Relocation

Awards

Loading recent sales...

Mary Byrne's Reviews & Ratings

11 Reviews

(5/5)

Note: Reviews may include other agents on their team

What clients say about this agent....

Communicative
Professional
Responsive
Knowledgeable
Hard working
Great for new buyers
Outstanding
Trustworthy
Attentive
Excellent negotiator

Mike

Review for Member: Mary Byrne

August 24, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

We purchased a home in Glenside, PA and I can't say enough good things about Alison and her team. From the start of the process through the closing, and even steps after (eg, applying for a homestead exemption, what we should expect on inspections with particular types of homes), we knew what to expect and when. We were treated with such kindness and every single question was answered with thorough detail (and I do ask a lot of questions). I've dealt with other realtors before who were less patient with the number of questions I have. Seriously, Alison and her team are awesome!

Chris P.

Review for Member: Mary Byrne

August 4, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Working with Alison and the Simon Sells Philly team was a fantastic experience from start to finish. Alison?s professionalism, dedication, and deep knowledge of the market made a stressful process feel as seamless and manageable as possible. She helped us sell our Philadelphia row home in just three days and we received multiple bids over asking price. On the buying side, she guided us to our dream home in Chester County and crafted a smart, creative offer that helped us stand out in a competitive, multiple-offer situation. Whether you are buying or selling in Philadelphia or the suburbs, I can?t recommend Alison and her team highly enough.

Chantee T.

Review for Member: Mary Byrne

August 26, 2024

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Alison and her team are awesome. I had a short window to buy a home while simultaneously selling another home and she went above and beyond to ensure that the entire process was easy. She is extremely knowledgeable and efficient. Alison is an expert in real estate and I would highly recommend her services to anyone looking to sell or purchase a home.

Moriba D.

Review for Member: Mary Byrne

March 8, 2024

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Keller Williams Philly is one of the best if not the best real estate company that has qualified personnel to help make your house purchase smoother. Always available to help, and have contacted for everything you may need relative to house. Allison Simon is very knowledgeable about real estate. You definitely can trust her to get you. The assistance dont stop at the closing, you always can reach back for help. I really enjoy working with the team.

Alec B.

Review for Member: Mary Byrne

September 21, 2023

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

With Alison and her teams? help, I was able to close on my first home while I was located all the way across the country. Alison is so knowledgeable, down to earth, and caring so trusting her to guide me through my home-buying process was a no-brainer. Alison was prompt, attentive, & thorough. She navigated a hurdle with a low appraisal with ease & negotiated with the sellers allowing me to get some money back at closing. Closing on-time with money back was a win-win! When it?s time for me to sell and move into my next home, I will absolutely be working with Alison and her team again!

Zuser20200709210957351

Review for Member: Mary Byrne

July 24, 2023

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Alison and her team made the home buying process experience so easy and worked around our chaotic schedule to make sure everything went smoothly! Cannot recommend them enough!

Jefry D.

Review for Member: Mary Byrne

March 27, 2023

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Knowledgeable and trustworthy , 100% recommend. Alison helped me purchase my first home. She made the process really comprehensive, facilitated the end-to-end process by aligning partners. Go with her, she will not waste your time, and will make sure she finds what you are looking for.

Shaquana22

Review for Member: Mary Byrne

January 22, 2023

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Alison was great to work with from the beginning. She walked my husband and I through the process and kept us informed of any changes and/or delays. Her team is exceptional and will go above and beyond to make sure I have what I need and to reduce the stress of the home-buying experience. I would definitely recommend Alison to anyone looking to purchase or sell their home.

MattDavis284

Review for Member: Mary Byrne

April 18, 2022

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Can?t say enough good about Alison! Really appreciated her hard work in such a strange market. She was always on time for appointments, negotiated amazingly with other agents, and responded quickly to all of our random questions. She knows her stuff and we?ll definitely be seeking her out again in the future!

Zuser20180611170435764

Review for Member: Mary Byrne

October 19, 2021

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Alison and team are the best there is. They made the process of selling our beloved Manayunk home easy and enjoyable, which I didn?t think was possible. Alison is dedicated, professional and truly cares about her clients. She went above and beyond for us and her whole team was so great to work with. Alison is extremely trustworthy and communicated every step of the way, was always available to talk us through things, answer any questions and was so kind. She?s really the best there is! We highly recommend Alison and are telling all our friends and family!

Allie R.

Review for Member: Mary Byrne

September 4, 2021

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

If you?re buying a home for the first time, Alison is the agent for you! After years of renting, my boyfriend and I decided it was time to buy a home?in the most competitive housing market in years. (lol) We were stressed to start our search, and didn?t even know where to begin with an agent. We got really lucky finding Alison! After reaching out to our neighborhood group for recos, we received an email from her about a property in Mt. Airy she could show us. After an intro call, we were really impressed by her knowledge of Philly, and overall expertise. (Most other agents we talked to warned us the market was crazy and tough, but we didn?t get those vibes from Alison at all!) She ended up showing us an amazing unlisted property in E. Mt. Airy (the first and only property we saw!) and we put an offer in on the house that night! From the beginning of the process to the end, Alison was so helpful, responsive, and super down-to-earth. She made this very stressful process a breeze. From great recos (mortgage lender, home inspector, insurance) to things like the best radon mitigation companies to use, etc., we are so grateful to have had her by our side every step of the way. Shoutout to her transaction coordinator, Kim, too! She was so nice and super responsive to my many emails! We seriously can?t thank Alison enough, and we?re so grateful we found her when we did!

FAQ

1. What types of clients have you worked with?

Contact Information

Location

728 South Broad Street #3rd Floor Philadelphia, PA, 19146

Social Media

More Agents Near You

Mary Byrne's Reviews & Ratings

11 Reviews

(5/5)

Note: Reviews may include other agents on their team

What clients say about this agent....

Communicative

Professional

Responsive

Knowledgeable

Hard working

Great for new buyers

Outstanding

Trustworthy

Attentive

Excellent negotiator

Mike

Review for Member: Mary Byrne

August 24, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED