Why Work With Us?

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Here's what our satisfied customers are saying about us:

Bill has gone over and above what a broker would typically do. I will continue to use Bill on all my Arlington properties. Bill is one of the best brokers i have worked with.



Kate Moscatel is truly passionate and realistic about her work as a real estate professional. She treats every aspect of a transaction as if it were her own property yet listens to and respects her client's wishes.  Her knowledge, experience and perserverance are outstanding, not to mention her meticulous guidance every step of the way. Kate has truly made purchasing and selling property a "piece of cake" for me. I hope to see Kate with her own real estate show on HGTV someday. 

Bill Copithorne with Sweeney & O'Connell Real Estate made what could have been a difficult process almost easy.  His responsiveness, attention to detail, and patience was impressive.  He always made us feel like we were a priority, and coordinated an inter-state sale with efficiency and style.  Thank you Bill Copithornel for being the best Realtor we have ever dealt with!

"Bill Copithorne worked for me as a real estate agent on one house purchase and one condo sale. He was very good to work with and produced the results we were seeking without being too aggressive and always being a good listener. I'd recommend him to anyone looking to buy or sell a house."
Service Category: Real Estate Agent
Year first hired: 1997 (hired more than once)
Top Qualities: Great Results, Personable, Expert


It was suggested to me by my P&C Agent to use Bill Copithorne to sell my family home/ rental property in Arlington. Bill was very professional and easy to work with.during the process. We discovered some issues that could have stalled the process and potentially decreased my profit, luckily Bill gave me expert advice and things went very satisfactory. The most important part of my experience was 3 years after the sale; I required Bill's assistance with reference to the sale. He of course remembered me and the property, he promptly gave me the information I required and told me it was part of the original deal, so no payment was required. I can say he is a man to trust and get the job done for you. I was very pleased and you will be also.


We are writing to express our pleasure with real estate broker, William Copithorne of Sweeney & O’Connell Real Estate, who represented us in our recent purchase of a single-family home.

Bill guided us through the entire process, from loan pre-qualification to searching for houses to making the offer and closing the deal. We credit him and Sweeney & O’Connell with a smooth, stress-free home-buying experience.

This is our first purchase of property, and never imagined we would have had such a pleasurable experience. Bill Copithorne is savvy, personable and knows the market inside and out. We never could have gotten through it without him.

To reiterate, we are nothing but pleased with Bill Copithorne and his expertise and we recommend him to everyone.

"I have used Bill Copithorne's office to look at homes, buy a house and sell a house.  This has been a succesfull business relationship over the years.

"Bill Copithorne was a fantastic buyers agent for me.  He helped me find a place I am still happily living in and even negotiated for me a great price (better than I thought I could get). He is very knowledgeable and great to work with. I will definitely be calling him when I decide to make my next move.

"I liked working with Bill Copithorne.  He knows his business,educated me enough in his business so that I understood what he was going to do & why, he speaks plainly and directly and most importantly he gets the job done pretty much on plan and on time"

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