A Criminal Defense Firm Designed to Give You More

Experience has taught us that a carefully managed caseload is key to achieving the best possible results for our clients. At Mas/Stig-Nielsen we accept a limited number of clients to ensure that each case receives the attention it requires and deserves.  We pride ourselves on our motion practice as well as our trial preparation, creative strategy, and effective implementation. Our firm handles felony criminal cases in the counties of Grand Traverse, Benzie, Manistee and Wexford. Focusing on quality over quantity, Mas/Stig-Nielsen strives to provide the highest caliber of criminal defense in the area. We take on less to give you more.


Family Owned and Operated

Mas/Stig-Nielsen is a 100% family owned and operated business. Betsy and Frederik met and married while attending Lewis & Clark Law School in Portland, Oregon. They have lived and worked in Benzie County since 2013. They have a wonderful daughter, Francisca, and are expecting their second child, a boy, in late summer of 2021.



Full Court Press: What COVID-era jury trial backlogs mean for the local criminal justice system 
Traverse City Business News - September 2021

TRAVERSE CITY — COVID-19 disrupted a lot of things. Businesses shut their doors – some temporarily, some forever. Concerts and other live events were cancelled. Wedding plans were turned upside down. And the wheels of justice ground to a halt..  

To plea or not to plea, that is the question: Whether ‘tis nobler to mitigate risk or roll the dice at trial?

To plea or not to plea, that is the question: Whether ‘tis nobler to mitigate risk or roll the dice at trial?

Inevitably in a criminal case, a client will have to forsake indecision and decide once and for all whether to accept a plea trial offer—a plea deal—or go to trial. At that point in the case, every client is going ask their attorney something to the effect of “what do ...


Please call us Fred and Betsy
Please, call us Fred and Betsy

Frederik helped me at the last minute when I was in a tough spot. He did the research, contacted the right people, and used his profound negotiating skills to get my case dismissed. I highly recommend you contact Frederik the next time you find yourself in trouble!

Fred was very helpful in my legal needs. He investigated and kept me informed of all my legal options and kept on top of my deadlines. He followed through on all possible outcomes and advised me through until the very end. He even followed up after my legal issue was resolved. I would likely recommend Fred!

Betsy went above and beyond to help in getting my license back. Honestly there's no way I'd have it if I didn't have her help. Highly recommend her to anyone. There's a lot of lawyers but not a lot of them fight for justice and she definitely does.

Fred is an excellent criminal defense attorney. He works hard for his clients, provide expert legal advise and is the aggressive criminal defense attorney you need to get your charges dropped.

I was extremely pleased with his service, his attention to detail and very personable. Would highly recommend Frederick!

Hands down one of the top Lawyers in the State of Michigan!

Absolutely the best people to work with! Genius level and they truly care! I would take a bullet for them. They helped me out so much when I had no where to turn for legal help.

So incredibly happy with Mr. Stig-Nielsen! If not for him, my life would be fairly different right about now. To getting my DUI dropped to a Reckless Driving to being a genuine caring person about my well being. Very thankful! Need more like him!

Frederick did a amazing job for me. He went above and beyond to make sure I was getting the best outcome possible. He cares about his clients. He treats you with respect, and is not scared to fight back! I would definitely use him again if I needed to. Wouldn't hire anyone else!

Proud Members of

National Association of Criminal Defense Attorneys

ACLU Michigan

Frankfort/Elberta Chamber of Commerce

Criminal Defense Attorneys of America

40 under 40

MasStigNielsen, PLLC is a BBB Accredited Lawyer in Frankfort, MI


420 E. Front Street
Suite C
Traverse City, MI   49686
Phone: (231) 714-4128
Fax: (231) 312-6066


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