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John M. Sigman
John M. Sigman is a lawyer in Austin, TX who works for Chamberlain McHaney, PLLC. Practice areas include Administrative and Public, Business, Construction. Court admissions include Texas Eastern Bankruptcy Court, Texas Eastern District Court. Licensed in Texas since 1990. Graduated from Texas Tech University in 1990.
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Law school
Bar admission
Office
Disciplinary
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John M. Sigman
Chamberlain McHaney, PLLCAustin, TX·35 years licensed
Claim profileContact attorney
John M. Sigman is a lawyer in Austin, TX who works for Chamberlain McHaney, PLLC. Practice areas include Administrative and Public, Business, Construction. Court admissions include Texas Eastern Bankruptcy Court, Texas Eastern District Court. Licensed in Texas since 1990. Graduated from Texas Tech University in 1990.
Law school
Texas Tech University
Class of 1990
Bar admission
1990
State Bar of TX · #18348075
Office
1205 W 43rd St
Austin, TX 78756
Disciplinary
None on record
Clean since admission
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Case data
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Practice, courts & credentials
Practice areas8 listed
Administrative and PublicBusinessConstructionConsumerCreditor-DebtorFamilyLitigation: CommercialLitigation: Personal Injury
Courts admitted6 total
Texas Eastern Bankruptcy Court
Texas Eastern District Court
Texas Northern Bankruptcy Court
Texas Northern District Court
Texas Western Bankruptcy Court
Texas Western District Court
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Last refreshed Aug 2026