JM
John Mastrangelo
John Mastrangelo is a lawyer in Montgomery, TX who works for S John Mastrangelo. Practice areas include Bankruptcy, Criminal, Litigation: Personal Injury. Licensed in Texas since 1983. Graduated from Southwestern University in 1983.
Claim profileContact attorney
Law school
Bar admission
Office
Disciplinary
JM
John Mastrangelo
S John MastrangeloMontgomery, TX·42 years licensed
Claim profileContact attorney
John Mastrangelo is a lawyer in Montgomery, TX who works for S John Mastrangelo. Practice areas include Bankruptcy, Criminal, Litigation: Personal Injury. Licensed in Texas since 1983. Graduated from Southwestern University in 1983.
Law school
Southwestern University
Class of 1983
Bar admission
1983
State Bar of TX · No. 13184370
Office
3996 FM 1486 N
Montgomery, TX 77356
Disciplinary
None on record
Clean since admission
Career history
2 observed firms
Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.
- S John MastrangeloAS OF MAY 2023Private Law Practice · The Woodlands, TX
- S John MastrangeloAPR 2026 — PRESENTPrivate Law Practice · Montgomery, TX
Case data
Case data
Click “Load case data” above to view charts.
Practice & jurisdiction
Practice areas
- Bankruptcy
- Criminal
- Litigation: Personal Injury
Reviews
No reviews yet. Be the first →
Last refreshed Jun 2026