Practice Transition Association

100 South Saunders Street

Suite 150

Lake Forest, Illinois 60045 


Phone: (847) 780-7070


Business hours:

By Appointment Only


“Someone’s sitting in the shade today because someone planted a tree a  long time ago.”  

- Warren Buffett

Lexern Law Group, Ltd.


Oleg N. Feldman, Esq., CPA


Attorney and Founding Member of Lexern Law Group, Ltd, f/k/a Feldman Law Offices, Ltd.


Areas of Practice:

  • Dental Practice Transitions
  • Veterinary Practice Transitions
  • Dental and Veterinary Office Leases and Employment Agreements
  • Dental and Veterinary Professional Corporations and Partnerships
  • Corporate and Employment Law
  • Civil Litigation and Shareholder Disputes


Professional development:


Mr. Feldman earned his Bachelor of Business Administration, summa cum laude, from the University of Wisconsin-Milwaukee in 1998 and his Juris Doctor, cum laude, from Marquette University Law School.  Mr. Feldman is a Certified Public Accountant and a member of the Wisconsin and Illinois State Bar Associations.


Mr. Feldman is licensed to practice in both Illinois and Wisconsin.  Mr. Feldman is admitted to practice before the Northern District of Illinois, Central District of Illinois, Eastern District of Wisconsin, and the U.S. Bankruptcy Court for the Northern District of Illinois and Eastern District of Wisconsin.


Mr. Feldman is a certified arbitrator for the State of Illinois Circuit Courtof of the 19th Judicial Circuit. 



  • Illinois State Bar Association 
  • Wisconsin State Bar Association
  • Lake County Bar Association
  • Power Partners of Lake County
  • Barrington Chamber of Commerce
  • SBAC


  • Illinois
  • Wisconsin
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