
Jason Mastrangelo, Business Attorney in Parsippany, New Jersey
Over 13 years of legal practice · focused on Business, Family Law, and General
PartneratWeiner Law Group, LLP
Parsippany, NJ
Practicing business in Parsippany since 2013.
- 13+
- Years practicing
- 3
- Bar admissions
Are you Jason Mastrangelo?
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Quick answer
Jason Mastrangelo is a partner based in Parsippany, NJ. The practice focuses on Business, Family Law, and General. Jason has over 13 years of legal experience. Currently practicing at Weiner Law Group, LLP.
- Based in
- Parsippany, NJ
- Experience
- over 13 years
- Known for
- Business · Family Law · General
- Handles Business, Family Law, and General matters from Parsippany, NJ.
- Over 13 years of practice as a licensed attorney.
About Jason Mastrangelo: Jason Mastrangelo is a partner based in Parsippany, NJ. The practice focuses on Business, Family Law, and General. Jason has over 13 years of legal experience. Currently practicing at Weiner Law Group, LLP.
Areas of practice
Jason's practice areas in Parsippany
Jason concentrates on business, family law, general, litigation, and personal injury. Each area below outlines the kind of case Jason handles, typical outcomes to expect, and how the intake process starts.
Business
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Family Law
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General
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Litigation
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Personal Injury
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Probate
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Real Estate
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Business cases in Parsippany, New Jersey
Jason takes business matters in Parsippany, New Jersey. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Jason agrees to represent you.
Family Law cases in Parsippany, New Jersey
Jason takes family law matters in Parsippany, New Jersey. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Jason agrees to represent you.
General cases in Parsippany, New Jersey
Jason takes general matters in Parsippany, New Jersey. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Jason agrees to represent you.
Litigation cases in Parsippany, New Jersey
Jason takes litigation matters in Parsippany, New Jersey. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Jason agrees to represent you.
Personal Injury cases in Parsippany, New Jersey
Jason takes personal injury matters in Parsippany, New Jersey. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Jason agrees to represent you.
Biography
Jason Mastrangelo, business attorney serving Parsippany
Jason Mastrangelo is a partner based in Parsippany, NJ. The practice focuses on Business, Family Law, and General. Jason has over 13 years of legal experience. Currently practicing at Weiner Law Group, LLP. Jason works from Parsippany, New Jersey and takes on business matters across the region.
Jason Mastrangelo is a lawyer practicing general practice, family, litigation and 4 other areas of law. Jason has been licensed for 13 years. Jason practices at Weiner Law Group, LLP in Parsippany, NJ.
How Jason handles business matters
Jason Mastrangelo is a lawyer practicing general practice, family, litigation and 4 other areas of law. Jason has been licensed for 13 years. Jason practices at Weiner Law Group, LLP in Parsippany, NJ.
Who Jason represents
Jason reviews new inquiries case-by-case for business, family law, and general matters in Parsippany and the surrounding New Jersey area.
Credentials
Credentials — where Jason studied and practices
Villanova University School of Law
JD · 2013
Jurisdictions
Jason's state bar admissions
New York
2021 · ACTIVE
Pennsylvania
2013 · ACTIVE
New Jersey
2013 · ACTIVE
Jason studied at JD in Villanova University School of Law.
Law school and academic background
Jason completed JD in Villanova University School of Law. Formal legal training is one signal of substantive knowledge — the day-to-day practice Jason runs in New Jersey is where that training gets applied to real client questions.
Affiliations
Jason's professional memberships and bar associations
New Jersey Association for Justice
membership
Locations
Jason Mastrangelo's office in Parsippany
Jason's primary office is at 629 Parsippany Road, Parsippany, NJ, 07054. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Jason Mastrangelo
Jason has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.
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Schedule your consultationHiring guide
How to hire Jason Mastrangelo — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Jason usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Jason charges for the initial consult. That fee is credited toward representation if you retain Jason's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Jason will tell you what matters and what doesn't.
Questions to ask a business attorney in Parsippany, New Jersey
A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Jason
Jason discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Jason confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Jason's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Jason Mastrangelo
How much does it cost to hire Jason for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Jason walks through the likely range during the consult so there are no surprises.
Does Jason offer a free consultation?
Jason charges for the initial consult; that fee is credited toward representation if you retain Jason's office. Some business attorneys offer free consults — check Jason's current terms during booking.
How long do business cases in New Jersey typically take?
Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Jason gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Jason take my case if I'm outside Parsippany?
Jason is licensed in New Jersey. Matters governed by New Jersey law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Jason will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Jason?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Jason will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Jason accepting new business clients right now?
Jason's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Business attorneys serving Parsippany, Trenton and Newark in New Jersey
Jason handles business matters throughout New Jersey. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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If Jason's intake is full or the fit isn't right, these business attorneys in Parsippany handle similar matters. Every profile below is verified and open to consultations.





