Louison, Costell, Condon, & Pfaff
Personal injury attorney
10 Post Office Square Ste 1330, Boston, MA 02109, United States
Information last updated
Practice Areas
About Louison, Costell, Condon, & Pfaff
Louison, Costello, Condon & Pfaff, LLP is a Boston-based law firm established in 1987 by attorneys Douglas I. Louison and Nancy Merrick. The firm serves individuals, public entities, and private businesses throughout Massachusetts, offering legal solutions across a broad range of issues. The attorneys emphasize an aggressive and proactive approach to legal representation, aiming to resolve matters efficiently and cost-effectively.
The firm's lawyers possess extensive experience in state and federal trial and appellate courts, including the Massachusetts Appeals Court, the Supreme Judicial Court, and the First Circuit Court of Appeals. They handle complex legal cases and are committed to open communication with clients. Louison, Costello, Condon & Pfaff, LLP maintains a track record of success in the courtroom, particularly in personal injury and civil litigation matters.
Primary practice areas include:
- Personal Injury Law
- Civil Rights Defense
- Employee Disciplinary Defense
- Employment Law
- Criminal Defense
- Municipal Law
- Real Estate
The firm also represents insurance companies, municipalities, labor unions, and businesses in various defense and transactional matters.
From the firm’s website
- Attorneys
- Douglas I. Louison
- Patrick Costello — Partner
- David E. Condon — Partner
- Regina Ryan — Principal
- Jena Munoz — Associate
- Alexandra 'Sasha' Gill
- Devin McDonough
- Claire R. Chang
- Joseph A. Mongiardo
- Manuel D. Soza
- Services listed
- Personal Injury Law, Civil Rights Defense, Employee Disciplinary Defense, Employment Law, Land Use, Construction & Contracts, Eminent Domain, Tax Title/Foreclosure, Criminal Defense, Municipal Law, Town Counsel, Special Counsel
- Founded
- 1987
- Consultations
- Free initial consultation
- Offices
- 10 Post Office Square Suite 1330 Boston, MA 02109
Source: merricklc.com · checked October 11, 2026. Lawyers Near Me hasn’t independently verified these details.
Hours of Operation
- Monday
- 8 am–5 pm
- Tuesday
- 8 am–5 pm
- Wednesday
- 8 am–5 pm
- Thursday
- 8 am–5 pm
- Friday
- 8 am–5 pm
- Saturday
- Closed
- Sunday
- Closed
Photos
Details & Amenities
Service options
Online appointmentsOn-site services
Highlights
Identifies as veteran-ownedLGBTQ+ friendlyTransgender safe spaceAppointment requiredAppointments recommended
Accessibility
Wheelchair-accessible car parkWheelchair-accessible entranceWheelchair-accessible toilet
Amenities
Toilet
Louison, Costell, Condon, & Pfaff — Frequently Asked Questions
Where is Louison, Costell, Condon, & Pfaff located?
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Louison, Costell, Condon, & Pfaff is at 10 Post Office Square Ste 1330, Boston, MA 02109.
What services does Louison, Costell, Condon, & Pfaff list on its website?
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When checked on October 11, 2026, the firm's website (merricklc.com) listed Personal Injury Law, Civil Rights Defense, Employee Disciplinary Defense, Employment Law, Land Use, Construction & Contracts, Eminent Domain, Tax Title/Foreclosure, Criminal Defense, Municipal Law, Town Counsel, Special Counsel.
How do I contact Louison, Costell, Condon, & Pfaff?
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Call Louison, Costell, Condon, & Pfaff at +1 617-439-0305. Its website is merricklc.com.
When is Louison, Costell, Condon, & Pfaff open?
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Monday to Friday: 8 am–5 pm. Saturday and Sunday: closed.
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