Practice Areas
Comprehensive criminal defense and personal injury representation across Minnesota, with decades of experience fighting for your rights.
Criminal Defense
Facing criminal charges is overwhelming, but you don't have to face them alone. Seamus Mahoney provides aggressive, strategic defense for all criminal charges in Minnesota—both state and federal. With 30+ years of courtroom experience, including five years as a Public Defender, Seamus understands the criminal justice system from every angle. He meticulously investigates each case, challenges questionable evidence, identifies constitutional violations, and negotiates with prosecutors to secure the best possible outcomes. Whether you're charged with a misdemeanor or facing serious felony allegations, Seamus fights tirelessly to protect your rights, your freedom, and your future.
How We Handle It:
Every case begins with a thorough review of the evidence, police reports, and witness statements. Seamus looks for weaknesses in the prosecution's case—illegal searches, Miranda violations, procedural errors, or lack of probable cause. He's not afraid to take cases to trial when necessary and has a proven track record of winning acquittals and securing dismissals.
DUI/DWI Defense
A DUI/DWI arrest can have devastating consequences—license suspension, hefty fines, increased insurance rates, job loss, and even jail time. But an arrest is not a conviction. Seamus Mahoney specializes in DUI/DWI defense and knows how to challenge the prosecution's case at every stage. From questioning the legality of the traffic stop to challenging breathalyzer accuracy and field sobriety test administration, Seamus leaves no stone unturned. He understands Minnesota's complex DUI laws, including implied consent violations, administrative license revocations, and enhanced penalties for repeat offenses.
How We Handle It:
Seamus immediately scrutinizes the circumstances of your arrest: Was the stop lawful? Were field sobriety tests properly administered? Was the breathalyzer machine calibrated correctly? Were your rights violated? He also explores rising BAC defenses, medical conditions that affect test results, and procedural errors. Many DUI cases can be won before trial through pre-trial motions to suppress evidence.
Drug Crimes
Drug charges in Minnesota carry severe penalties, from probation for simple possession to decades in prison for trafficking. Whether you're facing charges for marijuana, methamphetamine, cocaine, prescription drugs, or other controlled substances, Seamus Mahoney provides experienced defense rooted in constitutional law. Drug cases often hinge on Fourth Amendment search and seizure issues—illegal stops, warrantless searches, or improper search warrant execution. Seamus challenges the legality of how evidence was obtained and fights to have illegally seized drugs suppressed, which often leads to dismissal of charges.
How We Handle It:
Seamus investigates every detail: Was the search warrant valid? Did police have probable cause? Was your vehicle illegally searched? Were confidential informants reliable? He also explores alternative sentencing options like drug court, treatment programs, and deferred prosecution for first-time offenders. For serious trafficking charges, Seamus analyzes the chain of custody, witness credibility, and whether prosecutors can prove intent to distribute.
Assault & Violent Crimes
Assault and violent crime charges are among the most serious accusations you can face. Convictions can result in lengthy prison sentences, permanent criminal records, and lifelong consequences. Whether you're accused of simple assault, aggravated assault, domestic violence, or other violent offenses, Seamus Mahoney provides skilled defense focused on protecting your freedom and reputation. Many assault cases involve conflicting witness accounts, exaggerated claims, or situations involving self-defense. Seamus thoroughly investigates the facts, interviews witnesses, and challenges the prosecution's narrative.
How We Handle It:
Seamus examines every angle: Was it self-defense or defense of others? Were you the actual aggressor, or were you protecting yourself? Are witnesses credible? Is there video evidence? Were injuries exaggerated? He also explores alternative explanations and challenges the degree of charges. For domestic violence cases, Seamus understands the unique dynamics involved and works to protect both your legal rights and your family relationships.
Theft & Property Crimes
Theft and property crimes range from shoplifting to grand theft, burglary to robbery. While some are misdemeanors, many are felonies carrying significant prison time. Even a misdemeanor theft conviction can impact your ability to get a job, as employers view theft as a crime of dishonesty. Seamus Mahoney understands the stakes and fights aggressively to protect your record and your future. Many theft cases can be resolved favorably through diversion programs, restitution agreements, or reduced charges—especially for first-time offenders.
How We Handle It:
Seamus investigates the circumstances: Was there intent to steal, or was it a misunderstanding? Is the value of the property in dispute? Are there mental health or addiction issues that contributed? He negotiates with prosecutors to reduce charges, secure pretrial diversion, or arrange for restitution in lieu of prosecution. For serious felony theft charges, Seamus challenges the prosecution's evidence and fights for acquittals when appropriate.
White Collar Crimes
White collar crimes—fraud, embezzlement, identity theft, forgery, and other financially motivated offenses—are prosecuted aggressively and carry serious consequences, including prison time, restitution, and loss of professional licenses. These cases are often complex, involving extensive financial records, forensic accounting, and federal agencies. Seamus Mahoney has the experience to navigate these complicated cases and develop sophisticated defense strategies. Many white collar charges stem from misunderstandings, accounting errors, or civil disputes that should never have become criminal cases.
How We Handle It:
Seamus works with forensic accountants and financial experts to analyze the evidence, challenge the prosecution's theories, and demonstrate lack of criminal intent. He negotiates with prosecutors and federal agencies to resolve cases through restitution, deferred prosecution, or reduced charges. When appropriate, he takes cases to trial and challenges the government's burden of proof. Seamus also helps clients protect their professional licenses and reputations.
Juvenile Defense
When a minor is charged with a crime, the consequences extend far beyond the immediate case—they can impact education, college admissions, military service, and future employment. The juvenile justice system is focused on rehabilitation rather than punishment, but it's still critical to have an experienced attorney who understands how to navigate this unique system. Seamus Mahoney provides compassionate, strategic representation for minors facing delinquency charges, school disciplinary issues, and juvenile court proceedings. He works to keep young people out of the system whenever possible and to seal records so they can move forward with clean slates.
How We Handle It:
Seamus treats every juvenile case with sensitivity and understanding, recognizing that young people make mistakes. He explores diversion programs, informal adjustments, and alternative sentencing options that focus on education and rehabilitation rather than incarceration. He also fights to protect juveniles' rights during police questioning and court proceedings. For serious charges that could result in certification as an adult, Seamus provides aggressive defense to keep cases in juvenile court.
Personal Injury
When you've been injured due to someone else's negligence, you deserve compensation for your medical bills, lost wages, pain and suffering, and future care needs. Insurance companies often try to minimize payouts or deny claims altogether. Seamus Mahoney fights for injury victims to ensure they receive full and fair compensation. With decades of legal experience, Seamus understands how to build strong personal injury cases, negotiate with insurance adjusters, and take cases to trial when necessary. He handles all aspects of your claim so you can focus on recovery.
How We Handle It:
Seamus begins by thoroughly investigating your case—gathering medical records, accident reports, witness statements, and expert opinions. He works with medical professionals to document the full extent of your injuries and future care needs. He then negotiates aggressively with insurance companies to secure maximum compensation. If insurers refuse to offer fair settlements, Seamus is prepared to take your case to trial and present compelling evidence to a jury.
Need Legal Help Now?
Contact Seamus for a free consultation. Available 24/7 for emergencies. Don't wait — protect your rights today.