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About me

I have counseled clients in over a hundred divorce, paternity, child custody and child support cases, including trials and contested hearings. I gained my divorce experience at a large divorce firm in downtown Chicago, representing business owners, professionals, and high income/high net worth individuals. 

I graduated from Georgetown University with a degree in finance, which makes me different than almost all other divorce attorneys because I understands complicated financial matters. Most divorce attorneys will not understand business valuations, close corporations, unique investment structures, and retirement assets. I understand tax returns, income statements, balance sheets, and business appraisals that leave most family law attorneys confused. 


I moved to Illinois in 2011 to raise a family of my own. As a father and husband, I understand how important it is for a parent to have a close relationship with his or her children, and how a divorce can and will change ever aspect of a person's life. 


Contact info

Hecht & Seidman, LLC

900 Skokie Blvd.
Suite 104
Northbrook, IL, 60062

Practice areas


  1. Family: 50%
    6 years, 50 cases
  2. Divorce: 40%
  3. General Practice: 10%
    10 years, 100 cases



Hourly ($275-295/hour), Fixed (sometimes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

15 total 

Are you an attorney? Endorse this lawyer

  • Michael Phillip Doman

    Mark Schondorf is a fine divorce lawyer, who is passionate about his work, and represents his client's interests well. I was recently an opposing counsel to Mark on a difficult case. Mark combined a tough '"no nonsense" approach to the litigation while maintaining a high degree of professionalism throughout the course of the litigation..


    Michael Doman Divorce and separation Attorney
    Relationship: Opposing Counsel on matter

  • Paul Louis Feinstein

    I endorse this lawyer.


    Paul Feinstein Divorce and separation Attorney
    Relationship: Opposing Counsel on matter


ILActive And Authorized To Practice Law201005/17/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 40 Lawyers Under 40American Society of Legal Advocates2013
Work experience
TitleCompany nameDuration
AttorneyLaw Offices of Mark Schondorf2012 - Present
AssociateBerger Schatz2011 - 2012
AttorneyLaw Offices of Mark Schondorf2006 - 2011
Association namePosition nameDuration
Lake County Bar AssociationN/A2012 - Present
Chicago Bar AssociationN/A2011 - Present
Illinois State Bar AssociationN/A2011 - Present
American Bar AssociationMemberN/A
Illinois State Bar AssociationMemberN/A
Chicago Bar AssociationMemberN/A
Consumer Attorneys Association of Los AngelesMemberN/A
California Employment Lawyers AssociationMemberN/A
Los Angeles County Bar AssociationMemberN/A
Legal cases
Case nameOutcome
Profit Concepts v. GriffithMy Client Prevailed
See all legal cases 
Publication nameTitleDate
Winnetka TalkBetter economy means more business for divorce attorneys2014
The Docket - A Publication of the Lake County Bar AssociationBifurcation in Dissolution Actions2013
School nameMajorDegreeGraduated
Loyola University School of LawLawJD - Juris Doctor2006
Georgetown University Law CenterBusiness AdministrationN/A2002
Speaking engagements
Conference nameTitleDate
BNI We Mean Business meetingWhat To Do If You Or Someone You Know is Injured2014
RDG Monthly MeetingFinancial Aspects of Divorce2012