About the firm

Attorney Peter Charles Horstmann

For more than 35 years, Attorney Horstmann has devoted his practice exclusively to criminal defense — representing clients in Massachusetts state courts and in the United States District Court for the District of Massachusetts.

Peter Charles Horstmann

Attorney at Law

Admitted to practice

Massachusetts state courts; U.S. District Court, District of Massachusetts; First Circuit Court of Appeals

Recognition

Boston Magazine Top Lawyers, 2022 & 2023

Experience

More than 35 years of criminal defense practice

Focus

Exclusively criminal defense — state and federal

Background

Attorney Horstmann has built a reputation as one of Massachusetts' most tenacious and skilled criminal defense lawyers. He has tried hundreds of cases to verdict in District Court, Superior Court, and federal court, handling matters ranging from misdemeanor charges to complex federal drug conspiracies and violent crimes.

His practice covers the full spectrum of criminal defense: drug offenses, violent crimes, white collar crime, sex offenses, OUI defense, juvenile matters, and post-conviction appeals. Attorney Horstmann is known for his meticulous preparation, his command of constitutional law, and his willingness to take difficult cases to trial.

Attorney Horstmann has been recognized by Boston Magazine as a Top Lawyer in Massachusetts for multiple consecutive years. He is admitted to practice before all Massachusetts state courts, the United States District Court for the District of Massachusetts, and the United States Court of Appeals for the First Circuit.

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