Mary E. (Betsy) Mas

Mary E. (Betsy) Mas

Mas/Stig-Nielsen, PLLC
Claimed Lawyer Profile

Mas/Stig-Nielsen was founded because there is a need for high-quality, smart criminal defense in northern Michigan. We are committed to serving the needs of people accused of crimes by the government. Our firm is guided by the words of author and activist Bryan Stevenson,
each of us is more than the worst thing we’ve ever done. Regardless of what you stand accused of doing, we will help you.

Defense attorneys often sell themselves as being aggressive advocates in the courtroom, however, in our experience, that is not enough. Mas/Stig-Nielsen vehemently fights for our clients but more importantly we are prepared, intelligent attorneys who use the law to defend our clients. As former U.S. President Theodore Roosevelt famously said, speak softly and carry a big stick.

We are a husband and wife attorney team. We met in law school in Oregon and moved to Michigan in 2013. For the past six years we have litigated complex criminal cases in Northern Michigan including:

• open murder
• criminal sexual conduct, 1st, 2nd, 3rd, 4th degree
• delivery and manufacture of a controlled substance
• child abuse
• possession of child sexually abusive material
• larceny
• home invasion
• assault with intent to do great bodily harm
• resisting/obstructing
• delivery causing death
• criminal enterprise
• operating while intoxicated/impaired/presence of a controlled substance
• breaking and entering
• carrying a concealed weapon
• possession of controlled substance
• fleeing and eluding
• felon in possession of a firearm
• felonious assault
• armed robbery
• keeping a drug house
• domestic violence
• receiving/concealing stolen property
• malicious destruction of property
• discharging a firearm from a motor vehicle

Practice Area
Criminal Law
  • Spanish: Spoken, Written
Professional Experience
Mas/Stig-Nielsen, PLLC
- Current
Staff Attorney
Jesse L Williams Law & Advocacy Center
Lewis & Clark Law School
J.D. (2012)
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Aquinas College
B.A. (2007) | Spanish and Communication
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Professional Associations
State Bar of Michigan  # P79690
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Contact & Map
Mas/Stig-Nielsen, PLLC
427 Main Street, Suite 201
Frankfort, MI 49635
Telephone: (231) 714-4128
Cell: (616) 293-9666
Monday: 9 AM - 5 PM
Tuesday: 9 AM - 5 PM (Today)
Wednesday: 9 AM - 5 PM
Thursday: 9 AM - 5 PM
Friday: 9 AM - 5 PM
Saturday: Closed
Sunday: Closed
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