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Markham M. Jeep & Associates, P.C
200 N. Martin Luther King, Jr. Avenue Waukegan, IL 60085
Phone: (847) 360 - 3300
Fax: (847) 360-3303


Markham (Mark) M. Jeep – Attorney

Mr. Jeep began his practice in Waukegan nearly four decades ago after graduation from the Loyola of Chicago School of Law. He is a proud graduate of Waukegan Township High School (1970) and Northern Illinois University. From 1974 to 1976 he studied Political Philosophy and Constitutional Law as a graduate student before starting law school.

Mr. Jeep is an adjunct professor of law at NIU School of Law. He teaches Workers’ Compensation law and trial advocacy. He is a member of all of the relevant bar associations and specialty associations.

From 1966 until 1976 he worked as a mechanic for Progressive Power Equipment while attending school full time. He attained a level of expertise in the repair of small engines, construction equipment, and chain saws of which he remains proud to present. During law school he drove cross country delivering custom sports cars.

He has served on numerous charitable boards and church committees, but is most proud of the twelve years serving as Board Member and Board President of Gurnee Elementary School District 56. He was instrumental in the acquisition of land and the building of Viking School, O’Plaine School and Prarie School. He is the founder and first President of Studio 56, the parent support group for the performing arts.

He has been married to Susan Jeep (formerly Roettgen) (WTHS, Class of ’71), since 1973. He has three children, the youngest being his law partner, Graham, and three grandchildren.

Mark has obtained millions of dollars for his clients during a career which included jury trials, hearings and appeals in every branch of the judicial system of Illinois

  • Workers’ Compensation Lawyers Association
  • Illinois Trial Lawyers Association
  • Illinois & American Bar Association
  • Illinois State Bar Assembly Member
  • Member of Illinois Bar Association Workers Compensation Section Council
  • Chairman of Lake County Bar Association, Workers Compensation Committee
  • Adjunct Professor of Law, Northern Illinois University
  • “AV” Rated Leading Lawyer (Highest possible peer rating in legal ability and ethical standards) Martindale-Hubbell, the rating service for and by lawyers
  • Approved as a “Leading Lawyer” by the Law Bulletin Publishing Company
  • Illinois State Bar Association, General Assembly Member


Graham J. Jeep – Attorney

Admitted to Bar: 2010. Education: Graduated Lake Forest Academy, 2002 and DePaul University, 2006, earning his B.A., majoring in Philosophy and Political Science.  While attending Northern Illinois School of Law, he interned at the Lake County State’s Attorney’s Office and also was a law clerk for Goldstein & Fluxgold, Chicago.  As part of his curriculum at NIU, he had undertaken studies in Greece and France and earned his J.D. in 2010.

  •  Illinois State Bar Association
  • Workers Compensation Lawyers Association
  • Lake County Bar Association


Susan M. Gustafson – Paralegal
Born: Waukegan, Illinois.  Carthage College, Kenosha, Wisconsin May 1992, Paralegal Program. College of Lake County, Grayslake, Illinois, May 2002, Associates in Arts Degree in Business Administration, Highest Honors.  Sue assists with the needs of the client and is the office manager, as well.  She is a former Lake County Deputy Sheriff and has been with the firm for 30 years. Sue is married with two children and two grandchildren.

  • Associate Member, Lake County Bar Association


Support Team

The members of the firm are especially proud of our support staff and the degree to which they work as key team members to aid our clients during what is often the most difficult time of their lives. Our legal assistants tend to stay with us a long time, which is testament to their patience with their boss and, more importantly, their dedication to helping our injured clients. The term “legal secretary” doesn’t begin to describe their roles. We call these ladies “case managers” to indicate our commitment to the belief that communication with our clients is key to a successfully handled claim.

Every client is assigned to a team of case managers who are charged with the responsibility of updating the medical and work information on each claim and keeping the lawyer who is in charge of the file fully informed so critical steps are undertaken in a timely way. At least one of our case managers is capable of translating from Spanish to English.

We are proud of our relationships in the medical community. The doctors and therapists to whom we sometimes refer our clients are chosen first and foremost for their abilities to help our clients get well as soon as possible. We don’t want to string out your recovery or prolong your case one day longer than necessary. If your medical team isn’t doing the job, let us help you find the right doctor.

Case Managers

Kathleen Lapham


Diana Raasch


Receptionist/Medical Records Clerk

Ann Gustafson