Costello, Brennan, DeVidas, Sasso and Sinclair, P.C.
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Costello, Brennan, DeVidas, Sasso and Sinclair, P.C.
As the Number 1 law firm to protect your rights, our lawyers handle cases for Matrimonial (Divorce & Family), Criminal Law, Probate and Juvenile Law, Personal Injury, Workers Compensation and Real Estate Transactions.
Highlights and features
  • Matrimonial Law
  • Real Estate
  • Worker's Comp
  • Criminal Law
  • Probate Law
  • Juvenile Law
  • Personal Injury
Services
Matrimonial Law Our attorneys are sensitive to the individual needs of each of our clients in family disputes as we recognize that they can be emotionally charged and difficult for many families. Our matrimonial law practice includes:

divorces
custody actions
relocations
property disputes
child support and alimony
Workers Compensation At Costello, Brennan, Devidas, Sasso, & Sinclair, P.C. we provide you with the information to make the right choices so that you can receive the best medical care, benefits, and income. When injured in a workplace accident, sustains an occupational illness, or suffers the job-related aggravation of an existing condition, you may be eligible for Worker’s Compensation. These benefits, again, include medical benefits, wage loss benefits, disability benefits, and death benefits.
Criminal Law It is normal to feel scared and alone when facing felony and misdemeanor charges. If you have been charged with a crime, calm some of your fears by giving yourself reliable defense options. At Costello, Brennan, Devidas, Sasso, & Sinclair, P.C., we build strong defense strategies.
Personal Injury When you are injured, and in need of help, you need an attorney who can go head to head with insurance companies and attorneys. Costello, Brennan, Devidas, Sasso, & Sinclair, P.C. practices personal injury law and is dedicated to protecting an injured client. Our attorneys have firmly established themselves as prominent trial attorneys who are not afraid to go to court to get their clients the compensation they deserve.
People
Kieran J. Costello Esq
Kieran J. Costello Esq
Kieran J. Costello, Esq. is a member of the Connecticut Trial Lawyers of America, the Connecticut Bar Association, the American Bar Association and the American Association for Justice. In addition, Mr. Costello is the Co-Chair of the Family Law Section of the Greater Bar Association, a Member of the Elder Law Committee of the Connecticut Bar Association and a Member of the Trust and Estates Committee of the Greater Bridgeport Bar Association.

Mr. Costello has been an Adjunct Professor of Law at Housatonic Community College since 1993. Previously, he was a Professor of Law at Albertus Magnus College and Associate Professor at the University of Bridgeport.

Mr. Costello volunteers at Fairfield Community Services, where has served on the Board of Directors, the Domestic Violence Crisis Center of Stamford/Norwalk and the Y.W.C.A. of Greenwich. He has also served as a member of the Board of Directors at “the Center for Family Justice” in Bridgeport where he contin
Christopher P. Brennan Esq
Christopher P. Brennan Esq
Attorney Brennan concentrates in the areas of personal injury law, family law and criminal law. Attorney Brennan is an experienced trial attorney. Throughout his legal career, he has litigated thousands of civil, family and criminal cases and has participated in worker’s compensation hearings throughout the state.

After completing law school, Attorney Brennan began his legal career as a contract specialist working for Otis Elevator, a Fortune 500 United Technologies Company focusing on commercial contract negotiation and labor litigation. After leaving Otis Elevator, Attorney Brennan became an associate at Esty and Buckmir, LLC, an insurance defense firm focusing on worker’s compensation and general insurance defense litigation for major insurance companies.

As a partner at Costello, Brennan, DeVidas, Sasso and Sinclair, P.C., Attorney Brennan represents countless numbers of clients in areas of personal injury litigation, worker’s compensation litigation
Claire DeVidas Esq
Claire DeVidas Esq
Claire DeVidas joined Costello, Brennan and DeVidas, P.C. in 2008 and practices primarily in the area of family law, including, divorce, custody, visitation, alimony, child support, restraining orders and post-judgment modification and enforcement actions. She is experienced representing high net worth individuals and those with complex compensation packages. Ms. DeVidas began her career as an Assistant District Attorney in New Orleans, Louisiana. Her experience prosecuting violent crimes, including domestic violence, provides her with unique insight into the dynamics of abusive relationships and provides her clients with an edge in court proceedings. Ms. DeVidas also offers divorce mediation services for those couples who meet certain criteria. ” She gets great satisfaction by assisting individuals preserve their hard earned savings rather than engage in costly, protracted litigation.”

Ms. DeVidas is a member of the Family Law section of the Greater Bridgeport Bar
Reviews (14)
Dru Milkino
Dru Milkino
May 26, 2022
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Claire Devidas is a professional, great lawyer and a person with a big heart. She helped me a lot with the issue of temporary custody of my son during a difficult period of my life, helped me resolve all issues with documents, was always in touch, supported me in court and literally saved my family. Huge gratitude and respect.
Asia McRae-Johnson
Asia McRae-Johnson
Nov 11, 2021
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I recently had the pleasure of working with Linsey A. DeDomenico, Esq. Linsey took over my case after another attorney abandoned me. From day one she stepped right in, cut through the red tape and challenges, navigated my case as if she had been there from the beginning, kept my case on track, and was a strong advocate for me and my family. She is detail oriented making sure every base is covered.

She is patient and worked hard for a positive outcome. Linsey was able to accomplish in mere months what the other attorney could not/had not accomplished in almost a year. She worked tirelessly and maintained a calm, positive and professional demeanor at all times. Thank you, Lindsey.
Angela Grasso
Angela Grasso
Jul 29, 2021
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I had the immense pleasure of working with Kieran Costello & Sean Plumb throughout my divorce process. Divorce is difficult enough on any individual but both Kieran & Sean couldn't have been more professional, knowledgeable & encouraging throughout the process (Kieran's sense of humor kept my spirits up as well)! They were there by my side & kept me updated every step of the way! The entire staff at this office is wonderful. I would HIGHLY recommend their services to anyone going through a difficult/challenging divorce. They will not disappoint!
Karen Kay
Karen Kay
May 19, 2021
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Attys Costello and DeVidas recently helped get me divorced and I can't thank them enough. Kieran is brilliant in front of a judge and Claire's focus on detail gets motions and agreements written accurately and persuasively. I highly recommend this team.
John Oberson
John Oberson
May 17, 2021
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In a contentious divorce proceeding, I needed a robust litigation team. Costello, Brennan, DeVidas, Sasso and Sinclair was just what I needed. Attorney Kieran Costello, with his in-depth legal knowledge and Attorney Edward "Skip" Sinclair, with both his legal knowledge as well as his financial background, brought the case to a successful conclusion. I would recommend CBDSS to anyone.
Joanne Stevens
Joanne Stevens
Apr 03, 2020
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Kieran Costello is the only lawyer I trust to represent me in my custody battle. I was in the worst situation possible before I met Kieran and I thought I was really out of options and scared that my relationship with my children was gone. I highly recommend Kieran. He will fight for you.
Jonathan Miranda
Jonathan Miranda
Mar 31, 2017
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Chris Brennan worked on my personal injury case. He took the time to explain the process, the steps required to resolve my case and kept me informed. I had a great deal of confidence in Chris, he resolved my claim to my satisfaction. I highly recommend Chris to anyone looking for legal representation for a personal injury claim.
Alissa Pepe
Alissa Pepe
Sep 28, 2016
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I first consulted with Kieran Costello, who was humorous but very knowledgeable. He then handed my case to Attorney Mitchell Teta. Attorney Teta has been amazingly helpful and assertive in dealing with my child custody case. He is honest and direct, and continues to help me fight in court for the best interest of my child. I can't thank him enough for all he has done. Highly recommended firm and law office.
Greyson Schwing
Greyson Schwing
Jul 12, 2016
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I have enjoyed dealing with Kieran Costello over the last few years. I always appreciate his direct and professional manner and his staff and partners are always courteous and professional. I recommend Costello, Brennan, and DeVidas with confidence to anyone needing a good attorney.
Richard Breglia
Richard Breglia
Apr 09, 2016
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I have referred Christopher Brennan to many of my clients. He has successfully closed several Real Estate transactions and has always delivered top notch service. Past clients have also retained Chris for evictions, misc. litigation and divorce with the same positive results. He is a diligent worker and always responds in a timely manner. I have only received positive feedback from my clients and will continue to refer Chris clients in the future.
Michelle Williams
Michelle Williams
Jul 24, 2015
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I want to thank Kieran Costello and his team at Costello, Brennan and DeVidas. Kieran helped me get through the most difficult time in my life. He and his team were always fast to respond to my questions and gave me good advice at a time that when I found it difficult to think straight. He always took the time to explain the process to me. Kieran went out of his way to get the other side to work with us and come to a settlement.

He worked to bring closure and expedite the divorce. I never felt as though I was just an account at his firm. Not only did Costello, Brennan and DeVidas handle all of the issues involved with my divorce, they treated me with kindness, patience and understanding. Kieran truly helped me to get back on my feet and re-start my life. I wouldn't want anyone to have to go though the pain of divorce, but if you find yourself in the same position that I faced, I highly recommend Kieran to help you get through it.
Paul White
Paul White
May 15, 2015
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I was injured at work and was out for many months. I reached out to a close friend who gave me the name of a respectable law firm called Costello, Brennan and DeVidas, P.C. He told me to ask for Chris Brennan saying that he's a young, bright gentleman who is well respected and will waste no time in dealing with the adjuster to help me collect the wages that are due to me.

I called and spoke to Chris explaining my situation and he had me come to his office the very next day for a consult. The end result is that Chris delivered for me and he did this in a timely fashion. He not only had the insurance company bring me current money wise but he was also instrumental in helping me obtain the OK for the surgery that I desperately needed. Lets face one important fact here, weather your going through a divorce or you've been injured on the job or otherwise you want to know that the people or person you've hired to represent you in the court room is a competent and savvy individual.

If your unsure as to who could help you in a tight situation that you never asked nor expected to be in and your going to thumb through a phone book to pick a lawyer. Don't, call Costello, Brennan and DeVidas and let them prove to you like they proved to me that they can and will live up to their reputation as a class" A" law firm.
Ovy Saldanha
Ovy Saldanha
Mar 14, 2015
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I have worked with this firm for a few years. I can say that i have been extremely pleased with their services. They have fought for me and my children and have produced outstanding results every time. The advise I get is truly valuable and always in my best interests. They put their clients needs first and work tirelessly to achieve the goals we set out to achieve.

Both Kieran and Claire are simply amazing, their work ethic, integrity, honesty, conscientiousness are above reproach. They keep in regular contact with their clients. Thanks to Kieran and Claire, me and my children are in a much better situation, emotionally and financially than I was before i engaged their services. These guys are The Best, Top notch attorneys period!
Lori M.
Lori M.
Mar 03, 2015
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There is no room for second best when battling divorce and domestic violence. It can be one of the most challenging experiences of your life. I count my blessings each day and thank God that Kieran Costello is on my side. His compassion, intelligence, and commitment to justice has and will continue to ensure the safety and well being in every way of both my child and myself.

Not only can you trust that he will help you to achieve your desired outcome, you can trust that he and his staff are going to give it their all each step of the way. Only the best attorney will always ensure a return phone call before the end of the day and not only make sure your concerns are addressed, but end the conversation with a blessing. God Bless you Kieran and staff!