Welcome to
Mark J. Lang,
Attorney at Law, PC

Criminal Defense, General Law, Guardianship, Adoption and Trusts and Estates Law 

in Columbia County, Oregon

Oregon Criminal Attorney

Mark J. Lang

  Is an experienced Oregon criminal law , Family and general practice attorney and his office is located right here in historical Saint Helens, Columbia County, Oregon. Mark has treated every client like they were a part of his family. Other Oregon Criminal and general law attorneys may offer similar services, but Mark's services are the superior, and come with a personal and caring touch. 

As an Oregon attorney, who is also licensed in Washington and California, Mark is dedicated to helping people. Mark grew up in Downieville, a small mountain town in the Sierra Nevada mountains. He graduated from Santa Clara University and received his Bachelor of Science in Political Science in 1993. Mark worked at HP in Business Development. He decided to go to law school at the University of North Dakota. He was on the Dean's List and was Student Director for the Legal Aid Clinic and assisted members of the Spirit Lake Sioux Tribe. He graduated law school in 1997. 

He then moved to the North Oregon Coast. He developed the Clatsop County Domestic Violence Response Team. In 1998 to 2007 he came a successful prosecutor for the Clatsop County District Attorney's Office. He prosecuted over 200 jury and court trials. He developed expertise in Major felonies, DUII, Identity Theft, Child Support, and Property Crimes. He was an instructor for law enforcement and became a faculty member of the National Advocacy Center. 

In 2007, Mark moved back to Downieville and worked as CEO of the Western Sierra Medical Clinic (WSMC).  He led in the transformation of the clinic from 1,300 patients to over 10,000. He guided WSMC in a successful merger with another Community Health Center.

In 2010, Mark moved back to the Oregon Coast and opened his law office. He moved to Columbia County in 2015. His office is located at 2005 St Helens Street, Saint Helens.

If facing criminal charges of DUII, Measure 11, or Sex Offenses, Mark will help you navigate the troubled waters and will protect your rights and freedom.  Mark will help you in an Adoption.  He will also help you with that will or trust.

Mark is passionate about the law. He is here to help you in your legal need in Oregon. He is active member of the community. 

criminal law



Being charged with a crime can be very scary and confusing situation. Do not talk to law enforcement until you have help on your side. You need an experienced attorney by your side protecting your rights. Mark has over 20 years as being an attorney. He will help you remain calm and weather the storm. Whether you are charged with a Sex Offense, Measure 11, Major Felony, DUII/DUI or a misdemeanor Mark will help you.



Maximum prison terms and fines for felonies

1) For a Class A felony, 20 years and $375,000.

2) For a Class B felony, 10 years and $250,000.

3) For a Class C felony, 5 years and $125,000.   

Maximum sentences and fines for misdemeanors.

1) For a Class A misdemeanor, 364 days/ $6,250.       

2) For a Class B misdemeanor, 6 months/ $2,500.

3) For a Class C misdemeanor, 30 days/ $1,250.    



Maximum prison and fines for felonies

1)For a Class A felony, a term of life imprisonment and $50,000

2) For a Class B felony, 10 years and $20,000

3) For a Class C felony, 5 years and $10,000

Maximum sentences and fines for misdemeanors

Gross misdemeanor. 364 days in jail and $5,000.

Misdemeanor. 90 days in jail and $1,000.

Oregon criminal law services

I am a dedicated Oregon attorney who will listen to your needs. I pride myself on confidentiality and quality service. My staff and I will give you personal service and value your time. I will be upfront and honest with you about your legal matter. 

I will value your time and strive to keep costs low. I know getting something of value from your Oregon criminal defense lawyer is important. I keep my cost low, so I can pass those savings back to you when you're dealing with criminal law in Oregon

Guardianships and adoptions.

$190/ hr and flat fixed rates available. 

Measure 11, Major Felonies, Sex Offenses, Drug Felonies, White Collar Crime, Property Offenses, Expungements, DUI, and Misdemeanors.

$190/ hr and flat fixed rates available. 

Wills, trusts and probate.

$190/ hr and flat rates available.

INITIAL CONSULT: $50 (1/2 hour)

Oregon Expungements: $700.00 plus fingerprint cost


Disclaimer: The legal information presented at this site should not be constructed to be formal legal advice, nor the information of a lawyer or attorney client relationship. Any results set forth here were dependent on the facts of the particular case and the results will differ from case to case. To get specific legal advice regarding your case please contact Mark J. Lang.

About Us


You Matter

 Client satisfaction is my top priority.  I cannot make guarantees, but I will try to make sure you feel supported in your legal matter.  



 If you're looking for a high quality Attorney in Saint Helens and Scappoose, you've come to the right place. Mark has an Office in St.Helens, Oregon. Mark J. Lang is a professional who will give you the attention, respect and personal service you deserve to get you through your legal challenges. Mark offers high quality, value and cost effective services at a reasonable fixed cost. He has been an attorney for over 20 years. He is a litigator and has done over 200 trials and he will fight for you. He is a member of the Oregon Criminal Defense Law Association, Oregon Criminal Law Section, and Juvenile Law Section.  Mark also provides general legal services, which includes Divorce, Custody, Adoptions, Guardianships, Trusts and Wills, Probate and Business Legal Services. 



 Whether it is Measure 11, DUI or any criminal matter Mark is an Oregon criminal attorney who will help you or your loved one through it.

 Looking to adopt? 

Mark, who has adopted children of his own, will help you bring your new family together. Mark is a strong committed member of the community. He is also a member of the Columbia County Drug Court and the Oregon State Bar House of Delegates.  Mark appears in Oregon courts on a regular basis.

Criminal Law

Know Your Rights!

Dont Panic!  Being caught up with law enforcement can be really scary.  Mark has over 20 years of experience.  He will help you and your family get through this process with compassion and dedication.

Adoption/ Guardianships

Building families

Having adopted two children, Mark is passionate about adoption.  He will help you through the process and understands how important it is.  Whether it is Guardianship, an agency adoption, DHS adoption, Step-parent adoption, Mark will help you.

Trust and Estates

Need a Will or a Trust?

It is important to prepare and care for your family.  Mark will help you,


Contact Us

Better yet, see us in person!

We appreciate our Clients, so feel free to visit during normal business hours.

Mark J. Lang, Attorney at Law, PC

2005 Saint Helens St, Saint Helens, Oregon 97051, United States

(503) 410-5238


Monday - Friday: 9am - 6 pm

After Hours by appointment.

Saturday: By appointment

Sunday: Closed

Drop us a line!