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Korey Kajko

Trial Attorney

Korey S. Kajko is a trial attorney at Sweeney Merrigan Law and concentrates his practice on wrongful death, catastrophic personal injury, medical malpractice, and sexual abuse matters. Korey has experience in various stages of litigation, ranging from initial fact investigation, dispositive motion practice, settlement negotiations and alternative dispute resolution, and jury trials.

He is admitted to practice in Massachusetts and New Hampshire, as well as the United States District Court for the Districts of Massachusetts and New Hampshire. He received his B.A. from Assumption College, and his J.D. from New England Law | Boston.

Korey is an active member of the Massachusetts Academy of Trial Attorneys and American Association for Justice.

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Introduction

Korey S. Kajko is a trial attorney at Sweeney Merrigan Law and concentrates his practice on wrongful deathcatastrophic personal injury, medical malpractice, and sexual abuse matters. Korey has experience in various stages of litigation, ranging from initial fact investigation, dispositive motion practice, settlement negotiations and alternative dispute resolution, and jury trials.

He is admitted to practice in Massachusetts and New Hampshire, as well as the United States District Court for the Districts of Massachusetts and New Hampshire. He received his B.A. from Assumption College, and his J.D. from New England Law | Boston.

Korey is an active member of the Massachusetts Academy of Trial Attorneys and American Association for Justice.

Erin and Heather from Sweeney Merrigan Law worked tirelessly so I didn’t have to. Anytime I had a question it was throughly explained and every time I called the phone was answered. They were up front and honest from the start I couldn’t have asked for more from them. Id recommend them to anyone and if I ever need an attorney again they will be the first call I make.
Mike C

Mike C

October 29, 2025

Hi my name is Amanda back in 2023 I was a passenger involved in a serious car accident. My husband reached out to several law firms and he decided to go with Sweeney Merrigan. When he first spoke to them he was speaking with Ryan who quickly decided our case was better for Matthieu. Matt has work endlessly for the last 2 years with our case. He was understanding, So nice, they even sent me flowers on my big surgery day! They are so sweet! If you’re looking for a team of lawyers who have your back and won’t stop until you get justice I highly recommend Sweeney Merrigan Personal Injury Lawyers. Matt worked very hard and never gave up and always answered my call or texts he is amazing at what he does. Thank you so much Matt and the rest of your team at Sweeney Merrigan for not giving up and for taking our case ❤️ Amanda 💕
Amanda

Amanda

October 28, 2025

The Sweeney Merrigan Lawyers are so kind and friendly! The staff was so welcoming and accommodating to my family! They helped us so much!
Adrianna Davis

Adrianna Davis

August 20, 2025

I met the Sweeney Merrigan team at a local fair and they were very friendly and welcoming. They were handing out free backpacks and taking time to talk with people in the community. Really appreciate their generosity and support—it left me with a very positive impression of their firm.
Yuxin Tan

Yuxin Tan

August 20, 2025

Primarily working with Heather and Erin, the Sweeney Merrigan team stayed with me through a long and unique case. It was my first experience needing a legal team. Heather and Erin could always explain where we were in the process and what my options were along the way. I don’t want to get hurt again, but if I do, I know who I’m calling.
Berkley Stevens

Berkley Stevens

August 14, 2025

I give Sweeney Merrigan a five star rating they are awesome 👍 give their team a chance to get you what you deserve
Donald J. Santosuosso

Donald J. Santosuosso

August 12, 2025

Sweeney Merrigan Law—and especially our attorney, Erin—went above and beyond for our family during one of the most difficult times of our lives. Erin handled my daughter’s personal injury case with exceptional skill, care, and dedication. From the very beginning, Erin treated us like more than just clients—she listened, guided us every step of the way, and truly understood what our family was going through. Her professionalism and relentless commitment to achieving justice were evident in everything she did. Thanks to Erin and the entire Sweeney Merrigan team, we felt supported and protected throughout the entire process. She fought tirelessly for my daughter and secured a result that will have a lasting positive impact on her future. We are forever grateful for Erin’s compassion, expertise, and unwavering advocacy. I would highly recommend Erin and Sweeney Merrigan Law to anyone in need of a personal injury attorney who truly cares about their clients and delivers outstanding results.
Daniel Harris

Daniel Harris

August 5, 2025

I had an excellent experience with Sweeney Merrigan Lawyers. Ryan Hawkins was my personal attorney. He showed exceptional profesionalism and expertise when working with me. He was quick to answer the phone/email if i had any questions. He was very thorough with communication and guidance. I can’t thank him and his team enough. I would reccomend them to anyone.
Doug Poole

Doug Poole

June 24, 2025

I can’t say enough about Sweeney Merrigan law firm, from getting tossed aside by that other nation wide law firm Morgan and Morgan because my case wasn’t beneficial to their business is what they told me, Erin at Sweeney Merrigan achieved getting me the maximum amount of what I was insured for after a couple of texts and a couple of phone calls so easy,I know what firm is actually FOR THE PEOPLE I recommend highly Sweeney Merrigan they fight for their clients it’s obvious to me!
Rick Cameron

Rick Cameron

June 19, 2025

Awesome team over at Sweeney Merrigan!
Edward Astanin

Edward Astanin

May 15, 2025

Sweeney Merrigan is an amazing choice if you are looking for legal representation in the area. They are not scared of fighting on your behalf against any insurance companies, no matter how big they are. They do not back down, and fight for your rights to ensure you get the justice and compensation you deserve. Thank you guys, I recommend them 5/5.
Jennifer Thompson

Jennifer Thompson

April 15, 2025

Sweeney Merrigan and staff are AWESOME!!
Dave “Xyooj” Xiong

Dave “Xyooj” Xiong

April 14, 2025

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