CBSS Law

Costello, Brennan, Sasso and Sinclair, P.C.

Trusted Fairfield County Attorneys

Legal help that treats you like a person—not a case file

No matter what you’re dealing with, divorce, injury, criminal charges, or estate issues—you deserve legal support that feels personal. At CBSS Law, we don’t leave you to figure things out alone . We sit down, listen, and work with you to find a real path forward. For more than 25 years, Fairfield County families have trusted us to stand by them through some of life’s hardest moments. 

How We Help Fairfield Residents

Family Law

From divorce and custody to child support and post-judgment issues, we’re here to help your family through tough transitions with less conflict and more clarity.

Personal Injury

If you’ve been hurt because of someone else’s actions, we’ll help you pursue the compensation you need to heal, recover, and get your life back on track.

Probate and Estate Planning

Whether you’re planning ahead or settling a loved one’s estate, we’ll guide you through wills, probate, and everything in between.

Real Estate

We help buyers, sellers, and property owners close with confidence, resolve disputes, and protect what’s likely their biggest investment.

Criminal Defense

Being charged with a crime doesn’t make you a criminal. We defend your rights, fight for your future, and make sure your side of the story gets heard.

Workers' Compensation

If you got hurt on the job, you deserve support, not red tape. We help injured workers get the benefits they’re owed without the usual runaround.

Juvenile Law

When your child is facing legal trouble, the stakes feel even higher. We handle juvenile cases with the care, discretion, and advocacy your family deserves.

Recent Blog Posts

Our Core Values

Our Core Values Clear Communication

We keep it simple. No confusing terms, no sugarcoating. Just clear answers and real updates, every step of the way.

Clients First, Always

You’re not a case number. You’re a parent, a worker, a neighbor. We take the time to understand you and fight for what matters to you.

Calm in the Chaos

Legal issues are stressful. Our job is to lower the pressure, keep things steady, and help you move forward without panic.

Outcomes That Matter

Winning means something different to every client. Whether it’s protecting your kids, your income, or your record, we’re focused on results that change lives.

Get A Free Consultation

There is no room for second best when battling divorce and domestic violence.I count my blessings each day and thank God that Kieran Costello is on my side.

Lori E., Easton
top criminal lawyer - Fairfield County CT - Misdemeanors - Felonies Drunk Driving - Traffic Violations - Crimes

How We Help Fairfield Residents

If you’re searching for real answers, you’ve found the right firm. Let’s have a conversation, no pressure, no jargon, just real help from attorneys who care.

Moving forward from divorce.

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