Andrew W. Piltser Cowan

Attorney Profile

Top Rated Criminal Defense Attorney in Boston, MA

PiltserCowan Law LLC
 | 25 Bay State Rd, 2nd Floor
Boston, MA 02215
Phone: 617-804-7228
Selected To Rising Stars: 2019 - 2021
Licensed Since: 2008
Practice Areas:
  • Criminal Defense (50%),
  • Criminal Defense: White Collar (20%),
  • Estate Planning & Probate (20%),
  • Estate & Trust Litigation (10%)
Languages Spoken:
  • English,
  • German
    Attorney Profile

    Focusing his practice primarily on criminal defense matters, Andrew W. Piltser Cowan is an attorney at PiltserCowan Law LLC. From the firm's office in Boston, Massachusetts, he provides representation to clients throughout the greater Boston region, including all courts inside 495. Mr. Piltser-Cowan has been admitted to practice in Massachusetts since 2008.

    Mr. Cowan's client base largely consists of people who have been charged with having committed misdemeanor or felony offenses, whether in state or federal court. The types of cases that he has handled throughout his distinguished career have included operating a vehicle while under the influence of alcohol, arson, robbery, kidnapping, drug possession and trafficking, homicide, white collar crime, and internet crimes. Mr. Cowan has been able to obtain positive results for his clients through dismissals, acquittals, and the negotiation of favorable plea agreements with the prosecution.

    A native of Iowa, Mr. Piltser-Cowan attended The University of Iowa as an undergraduate, where he majored in physics and astronomy and received a Bachelor of Science in 2005. He then went on to pursue his legal education at Cornell Law School. While he was there, Mr. Piltser-Cowan was on the editorial board of the Cornell Journal of Law and Public Policy, and he served several clerkships, including one with the Public Defender Service for the District of Columbia, before being awarded his Juris Doctor cum laude in 2008. After he graduated, Attorney Piltser-Cowan spent several years with the Dedham, Massachusetts, office of the CPCS Public Defender Division before starting his own firm in August 2013.  In the spring of 2017, finding it difficult to manage the high demand for his services alone, Attorney Piltser Cowan hired several associate lawyers to found what would eventually become PiltserCowan Law LLC.

    Practice Areas
    • 50%Criminal Defense
    • 20%Criminal Defense: White Collar
    • 20%Estate Planning & Probate
    • 10%Estate & Trust Litigation
    Focus Areas

    Arrest & Arraignment, Assault & Battery, Criminal Fraud, Criminal Law, Drug & Alcohol Violations, Expungement, False Accusations, Felony, Misdemeanor, Motor Vehicle Offenses, Murder, Probation, Sex Offenses, Theft, Traffic Violations, Criminal Domestic Violence, White Collar Crime, Criminal Law - Federal, Estate Planning, Guardianships & Conservatorships, Living Wills, Power of Attorney, Probate & Estate Administration, Trusts, Wills, Will Contests


    top-imageSelected to Rising Stars for 3 years

    Rising Stars: 2019 - 2021

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    About Andrew Piltser Cowan

    Admitted: 2008, Massachusetts

    Professional Webpage:


    • Awarded annually to the Cornell Law student or students who made the greatest contributions during their law school career to civil-human rights., Freeman Award for Civil-Human Rights, Cornell Law School, 2008
    • CALI Excellence for the Future Award in Federal Jurisdiction, Cornell Law School
    • For outstanding contribution to the Occupy Boston Legal Working Group, Certificate of Achievement, National Lawyers Guild Massachusetts Chapter, 2012
    • Granted annually to a single alum.  Awarded at the Cornell Club in New York, February 10, 2012., Rising Star Award for Exemplary Public Service, Cornell Law School, 2012
    • Acknowledging generous donation of legal expertise and dedication to the victims and families affected by Hurricanes Katrina and Rita, Louisiana Supreme Court, 2007

    Bar/Professional Activity:

    • MCLE and CPCS Training Presentations including: Law of Evidence (2014-2018 multiple times per year) Scientific Evidence in Drug Cases (2013-2014) Superior Court Criminal Discovery (2015-2016) Identification Issues in Criminal Cases (2014) Probation Violations in the District Court (2014) Technical Evidence in Probation Violation Hearings (Norfolk and Plymouth Bar Advocates 2017), 2013

    Pro bono/Community Service:

    • I am a corporate member and volunteer counsel to Arisia, Inc., a nonprofit that puts on New England's largest and most diverse science fiction convention.  After a sexual abuse scandal in the fall of 2018, I joined the corporate membership and began working (with many others) on helping to revamp the organization's policies and procedures for handling misconduct allegations.  In 2019, I served as one of two laisons between the organization's Incident Response Team and The Watch (which handles more general safety issues around the convention).  I also assist the organization in obtaining and interpreting legal documents relevant to incidents they are investigating, and drafted a successful bylaws amendment to bring our procedures for expelling members in line with state law.
    • Volunteer, Hurricane Katrina, Pro Bono Project of New Orleans
    • Active member of Occupy Boston Legal Working Group (through the National Lawyers' Guild)., 2012


    • Client's former student sought a restraining order against him, accusing him of rape.  I put together a cross-examination based on 3,000 pages of text messages exchanged between the two and persuaded the judge not to credit her testimony despite the very low bar in restraining order cases., 2019
    • Client's wife filed a restraining order, in the opening salvo of their divorce, alleging that he had forced her to engage in a variety of sexual acts.  I was able to review thousands of pages of online messages to show that she was a willing and enthusiastic participant in the acts she claimed to have been forced into.  As a result, the judge denied her application for a restraining order., 2019
    • Intellectually disabled client indicted for exchanging sexually explicit messages online with a minor.  After years of litigation, I was able to persaude the cout to find him not competent to stand trial, and then persaude the ADA to drop the charges based on his disabilities., 2018
    • Negligent operation of a motor vehicle complaint dismissed on motion despite very serious injuries due to police failure to timely issue a citation., 2017
    • Represented a decedent's unmarried life partner who was accused of unduly influencing the decedent to leave her his home and 80% of financial assets.  Settled for a prior draft of his estate plan in which my client received the home and 50% of financial assets., 2016
    • Required finding of not guilty after 3-day Superior Court jury trial for a woman who was indicted for drug distribution based solely on her husband's conduct., 2015


    • Series of videos produced in house on how we approach criminal defense, and how citizens should handle interacting with the police., Criminal Defense Video Series, 2017

    Educational Background:

    • Bachelor of Science, Physics and Astronomy, Minor: German, University of Iowa, 2005
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    Office Location for Andrew W. Piltser Cowan

    25 Bay State Rd
    2nd Floor
    Boston, MA 02215

    Phone: 617-804-7228

    Andrew W. Piltser Cowan:

    Last Updated: 4/26/2021

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