Sullivan Sullivan and McGuire in Denver. A Law Firm That Will Stand Up for Your Rights
Sullivan Sullivan and McGuire was established in 1982 on the basis of helping people who have been injured on the job or are unable to work due to injury or illness of any type. Our law firm has spent decades standing up for the rights of people in Denver and the surrounding parts of Colorado. We want to show you the difference our experience can make for you. E-mail us or call us toll-free at 866-662-9674 to schedule a free consultation. All cases are handled on a contingency basis. Whether you are seeking Workers' Compensation or Social Security Disability, we are here for you. We have built a solid reputation for helping people get the money they need to maintain their quality of life. This reputation has led to our being named Colorado Super Lawyers by Denver’s 5280 Magazine. We have obtained over 100 million dollars for injured people in Workers’ Compensation cases. Our team is made up of award winning lawyers. Each of our lawyers have been named Outstanding Claimant Attorneys by the Professionals in Workers’ Compensation (PWC) organization. Our group also includes former presidents and founders of the Workers’ Compensation Education Association (WCEA), the state’s largest association of claimant’s attorneys. Our firm has helped countless people get the Social Security Disability benefits they need. We frequently lecture on Social Security Disability and related topics, sharing our respected knowledge and experience with others. We stand up for people throughout the process by building thorough and aggressive legal strategies to reach the goals of our clients. We believe that legal representation needs to be personalized to be truly effective. Our attorneys do not provide guidance on a one-size-fits-all basis. Instead, we take the time to listen to your needs and learn about your goals. We will educate you about the process and the various paths that are available. You can count on us to guide you down the one that is right for you.
Honors and Awards
R. Jack Garrett Award for Excellence in Trial Advocacy
Voted Colorado Super Lawyer for the past 10+ years
Professional Associations and Memberships
Denver Bar Association Member
Colorado Bar Association Member
Current Chairman of Colorado Bar Association's Worker's Compensation section
Past Chairman of Colorado Bar Association's Worker's Compensation section
Past President of Workers' Compensation Education Association
Past President of Professionals in Workers' Compensation
University of Missouri School of Law - J.D. - 1991
Honors - Director of Board of Advocates
De Pauw University, Greencastle, IN - B.A.
Major - English Composition
Center for Medieval and Renaissance Studies, Oxford, England
Since 1982, the attorneys of Sullivan Sullivan and McGuire have helped people in Denver and the surrounding parts of Colorado. We are specifically dedicated to matters involving Workers’ Compensation and Social Security Disability cases. This focus has granted us a depth of knowledge on these topics that is particularly helpful when designing legal strategies to get the best results. For a free consultation with an experienced Denver Workers' Compensation lawyer, contact Sullivan Sullivan and McGuire. We handle all Social Security Disability and Workers’ Compensation cases on a contingency basis.
For a free consultation with a Social Security Disability and Workers' Compensation attorney email or call us toll free at 1-866-662-9674 or
★★★★★ - February 10, 2022
Mr. McGuire represented my son who is a special needs kiddo and functions below his age level. Mr. Mcguire was understanding, patient and explained all we needed to know for our hearing. His paralegal was also kind and patient with me as I had many questions and called her often. Thank you both for taking a lot of pressure off of me. It is greatfully appreciated.
★★★★★ - February 9, 2022
My experience with everyone there was above expectations. The complete communications between the office and myself were extraordinary and made very clear to me.
★★★★★ - February 15, 2022
My wife and I both had Peter McGuire as Attorney for our Social Security Disability case. He kept us well informed, upfront with expectations and very professional. He is a caring and honest person. I recommend him.
★★★★★ - December 7, 2021
Peter McGuire and his staff are an absolutely incredible team to work with! Punctual, informative, available to answer any and all questions! I would highly recommend them!
★★★★★ - July 14, 2021
I retained Pete McGuire and staff to assist me with the disability process. He was able to guide me through until it reached the final court hearing date. I was approved. They made a potentially overwhelming process very tolerable. I am so glad I hired him! Highly recommend!
★★★★★ - July 14, 2021
Absolute top notch Attorneys for your case.I could not ask for better results.Grade A Patrick M.
★★★★★ - April 27, 2021
Megan was AWESOME! Very professional, answered all of my questions and returned messages promptly. Mr McGuire was nice and very thorough when going over possible questions that could be asked in court.
★★★★★ - December 3, 2020
From day one the staff and Mr. McGuire treated us with nothing but respect no question was to big or to small. I really appreciate your patience and getting the job done. Thank you so much.
★★★★★ - October 8, 2020
Mr. Mcguire was amazing! Very comforting and compassionate. Walked me through the entire process from start to finish. His staff is very professional and courteous. Highy recommend this law firm.
★★★★★ - September 16, 2020
My wife refer me to Mr. McGuire. She had used him in the past and everything she said was true. Mr. McGuire listened to me and answer all my questions. Thank you Mr. McGuire my case was favorable and my wife thinks you're the best...
★★★★★ - July 1, 2020
I recently worked with Mr. Pete McGuire on my disability case. I have had some very negative experience with prior attorneys. From the first time I met with Mr. McGuire, I could tell he was different than any other attorneys I had talked to. He was friendly, honest, straight forward and seemed very knowledgeable. He took the time to make me feel comfortable, he explained every question I had and I left our first meeting feeling so much better than when I arrived. When I showed up for the court date, the lady who checked me in made the comment “Don’t worry hun, you have Pete as your attorney, you’ll be just fine.” I would definitely recommend Mr. Pete McGuire to anyone looking for a great attorney!
★★★★★ - June 17, 2020
Very professional team and always responsive within 24 hours. Sincere and hard working team. Highly recommend!
★★★★★ - March 29, 2020
If you are looking for an excellent Social Security Disability attorney, I would recommend Peter McGuire. He won my case plus almost two years of back pay. He and his staff are thorough, kind and knowledgeable. I would not try this alone (as most cases are denied initially). My case was denied before I hired Pete and I should have hired him in the beginning. It is a long process and I wish you all the best if you are seeking SSDI.
★★★★★ - March 10, 2020
I had the opportunity to have Pete McGuire represent me in a disability case. I appreciated his expertise in the matter -- his ease of communication and his high level of integrity. Pete was able to take the information I gave him regarding my disability to another level of expertise, and was able to represent me at a court hearing in a professional and skillful manner. His presentation gave me a very calm and positive outlook to my situation. I would highly recommend Pete McGuire and his team to anyone for any of the services they provide.
★★★★★ - March 10, 2020
Peter, Steve and Megan did a great job on my case with a favorable outcome. I appreciate that they stuck with me for almost 2 years!!!!!!!
★★★★★ - Posted Dec. 12, 2019
Very professional, very helpful and stayed right on top of my case. Thank you.
★★★★★ - Posted Sept. 8, 2019
Compassionate, thorough, accessible and ultimately successful! Great disability lawyer!
★★★★★ - Posted Sept. 7, 2019
I wouldn’t have worked with anyone else. The entire legal team fought for me and I got everything I deserved in a timely fashion. Wonderful people to trust and work with!
★★★★★ - Posted July 3, 2019
Very nice firm. Mr McGuire is a very nice man who works hard for you. He helped me win my case! Trust him and have faith in the process. Thank you!
★★★★★ - Posted June 15, 2019
Best of the best!.....Awesome staff and Mr. McGuire was just perfect. Was professional, considerate, empathic and kind. He answered questions and treated me with respect. When you go through this process, along the way many people forget that you too once held a professional position in the work industry and you are treated less than. This did not happen once with this Law Firm. I would recommend them to anyone whom is attempting to navigate the Social Security. Let me not forget to mention his awesome Paralegal Steve:)
★★★★★ - Posted March 29, 2019
To All that is Looking for a Hardworking, Honest, Genuine, On Your Side Attorney, Look No FUTHER ,Mr Pete Mcguire is the Attorney for You !! He is a Very Personable ,Compassionate Attorney, he Really Cares About His Clients ! From the Beginning his Expertise , he will let you know what your chances are in fighting whatever case that is in front of You !! Then when your in front of the Judge , Mr Mcguire Really goes to work presenting your Case to the Court ! I have Been Around many Attorney's in my Life ,and it is So easy for me to Say the Attorney Pete Mcguire Is Simply the BEST ATTORNEY that I have Ever had Respsent me in any of my cases !! Do Not Waste Anymore of your time , I Highly Reccomend Mr. Pete Mcguire to Everyone that is in Need of an Attorney !! Thanks Mr. Mcguire For All of Your Help , Cant Thank You Enough!!
★★★★★ - Posted Feb. 28, 2019
I thought for my disability case 8 years 8 years Peter Sullivan took a hold of my case this year and I won after all those years of fighting I won it was evident and Peter made it clear to the judge thank you so much Peter I will give your name to everybody that I know with complications in life once again thank you very much
★★★★★ - Posted November 6, 2018
Peter And Meagan we’re so helpful explaining the process to us and helping us understand the process. Highly recommend!
No attorneys' fees until we win
1325 South Colorado Blvd.; Suite 405, Denver, Colorado 80222
(303) 691-9868 (303 691-0319 (fax)
09:00 am – 05:00 pm
Monday - Friday: 9am - 4pm
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