Experienced Criminal Defense Lawyer
ALWAYS FIGHTING FOR YOU

DeMatteo Law Firm is your strong advocate when you are facing serious criminal charges under South Dakota law. I am out here fighting for your rights and exhausting every defense to protect your freedom and salvage your future.
Criminal Defense For The Sioux Falls Area

Whatever The Charges
SERIOUS FELONY CRIMES
Assault, Robbery, Sex Offenses, Homicide
DRUG CHARGES
Drug Possession, Intent To Distribute
DRUNK DRIVING (DWI)
First Offense, Repeat DWI, Refusal
THEFT & PROPERTY CRIMES
Shoplifting, Burglary, Identity Theft
DOMESTIC VIOLENCE
Domestic Assault, Protection Orders
ABUSE AND NEGLECT
(Child Protection Services)
Accused Of A Serious Crime?

I am Lyndsay DeMatteo, a criminal defense attorney with 17 years of experience. I welcome the tough cases, including major felonies like robbery, rape, aggravated assault and murder. With the possibility of prison and the lifelong burden of a criminal record, you can count on me for a vigorous and strategic defense.
I am proud of the success stories on behalf of my clients. My early intervention may prevent an arrest or get the case dismissed. Sometimes I can negotiate lesser penalties or keep evidence out of court. And I have won acquittals at trial, from DWI to murder cases. Whether you are accused of a misdemeanor or a serious felony crime, I know what to do to shield you from the worst.
Everyone Is Entitled To A Defense

None of us are who we are on our worst day. I don’t defend the crimes, I defend the human being who stands accused. You have many rights, but the government has a lot of power and resources. My job is to keep the police and prosecutors in check and challenge their version of events. I am ready to take your case to trial if that’s what it takes.
I Have Got Your Back
I give my clients the same honest advice and earnest advocacy I would give to my own family members. You can count on DeMatteo Law Firm for a spirited defense, no matter what the charges or how bad things may seem. Call my Sioux Falls office today at 605-607-5171 or use the email form below.
Meet Lyndsay DeMatteo
What Our Clients Say







FREE RESOURCE To Protect Your Rights

Download this and keep it in your glove compartment or wallet. If you are pulled over or detained, hand the officer this and politely decline to answer questions until you talk to an attorney.

Fierce Representation At Affordable Rates