Mark S. Bishop

Managing Member

Mr. Bishop is known as a trusted advisor and skilled advocate for his clients.  Over the past seventeen years, Mr. Bishop has developed a broad and deep level of experience representing individuals and businesses in the federal and state court systems helping his clients to overcome their most significant legal challenges.  Mr. Bishop serves clients throughout northern Illinois including DuPage, Kane, Cook, Will, and Kendall Counties.


Mr. Bishop began his career working for a large west-suburban firm, Huck Bouma, PC in Wheaton.  As a member of the Litigation Practice Group, Mr. Bishop gained invaluable experience representing small and mid-sized business clients in sophisticated commercial litigation matters. The firm was also known as the leading estate planning and administration firm outside Chicago and, as a result, Mr. Bishop had the opportunity to represent fiduciaries, heirs, and beneficiaries in substantial estate, trust and guardianship litigation matters.  While at Huck Bouma, Mr. Bishop developed and grew a personal injury trial practice and became the primary attorney representing all the firm’s clients in profound injury and wrongful death matters. 

Mr. Bishop continued to gain experience after transitioning his practice to a smaller firm, Roberts PC, in 2014 and Mr. Bishop ultimately decided that the best way to deliver the highest level of personalized services to his clients was to establish his own law firm.  In March of 2016, Mr. Bishop established the Law Offices of Mark S. Bishop, LLC. 


Mr. Bishop represents the ownership and management of small and mid-sized companies providing advice and representation in critical legal matters that his clients face including: emergency litigation to protect confidential information and trade secrets, to enforce restrictive covenants, to stop unlawful trade practices, and to halt intellectual property infringement in the marketplace.  Mr. Bishop also represents business clients in disputes over key contracts, commercial lease defaults, breaches of shareholder agreements, enforcement of buy-sell agreements, enforcement of homeowners’ association covenants and restrictions, and a wide variety of other legal matters businesses face on a daily basis.

In addition to representing business owners, Mr. Bishop also represents individuals in contested estate, trust, and probate litigation. Mr. Bishop has extensive experience advising fiduciaries of estates and trust on proper administration as well representing fiduciaries in court on claims asserted by or against heirs, beneficiaries, or creditors.  Mr. Bishop represents parties in guardianship proceedings before the probate court when clients seek appointment of a guardian for a loved one who can no longer make suitable and safe decisions regarding their own affairs.

Mr. Bishop is also a strong advocate for individuals and/or families of individuals who have been severely injured or died as a result of someone else’s negligence.   Mr. Bishop has been obtaining millions of dollars in just compensation for personal injury clients throughout his career and represents clients suffering profound injuries in cases involving wrongful death, truck and automobile accidents, premises liability, nursing home neglect and abuse, and select medical-negligence matters.  Many other attorneys in the legal community refer personal injury matters to Mr. Bishop and our firm provides competitive referral fees on those cases. 


  • State of Illinois, 1999

  • United States District Court for the Northern District of Illinois, 1999

  • Trial Bar, United States District Court for the Northern District of Illinois, 2002

  • United States Court of Appeals for the Seventh Circuit, 2005


  • University of Illinois, Urbana-Champaign, Illinois (J.D. 1999)

  • University of Illinois, Urbana-Champaign, Illinois (B.S. 1995)


DuPage County Bar Association

  • Member of the Board of Directors, May 2016 to present

  • Sustaining Member

  • General Counsel, 2015-2016

  • Associate General Counsel, 2014-2015

  • Chairman of various committees including Civil Law and Practice and Alternative Dispute Resolution

Robert E. Jones American Inn of Court

  • Vice President, 2016-2017

  • Treasurer, 2015-2016

  • Membership Chair, 2014-2015

Illinois State Bar Association

Illinois Trial Lawyers Association


Mr. Bishop is also an active member in various community organizations including his local church, homeowners’ association, car and racing clubs, and his children’s school and sports activities.


Direct Line:  (630) 445-0699

Direct Line:  (331) 215-9306

Jennifer L. Sykora 

Senior Counsel

Ms. Sykora brings sophisticated business litigation experience to the firm in order to provide clients with more indepth analysis of complex legal issues and practical advice on challenges they may be facing in state or federal courts. 

Ms. Sykora previously worked for respected Chicago law firms Peterson & Ross, and Mandell, Menkes & Surdyk, LLC (now Mandell Menkes, LLC), providing large corporate and insurance industry clients with claims management and national litigation oversight on matters involving professional liability claims, Directors' and Officers' Liability claims, and employment practice liability claims.  Ms. Sykora provided critical advice to her business clients by designing case management strategies, negotiating settlements, and counseling clients on compliance issues in an effort to help clients avoid employment liability claims including EEOC, ADA, and FMLA matters or to resolve those claims if they ultimately did arise.   

Ms. Sykora now utilizes her strong litigation analysis and management skill set to provide counseling and advocacy for our small and mid-size business clients and their owners.


Ms. Sykora represents our business clients in all aspects of business litigation matters including shareholder disputes, breach of fiduciary duty claims, dissolution proceedings, contract actions, unfair competition, and actions to enforce restrictive covenants and protect trade secret information. Ms. Sykora also represents firm clients who are fiduciaries, heirs, and beneficiaries in contested trust and estate administration and construction actions.  


  • State of Illinois, 1997


  • University of Illinois, Urbana-Champaign, Illinois (J.D. 1997)

  • University of Illinois, Urbana-Champaign, Illinois (B.S. 1994)



Direct Line:  (331) 215-9307

Andrew Leuchtmann

Senior Counsel

Mr. Leuchtmann is a highly experienced trial lawyer that brings more than fourteen years of trial advocacy skill to the firm.  In fact, Mr. Leuchtmann tried twelve cases while still in law school on his third-year bar card even before receiving his law degree.  Mr. Leuchtmann is most at home in the courtroom and provides skilled and aggressive representation for our clients in matters of all complexity before juries and judges in both state and federal courts.

Mr. Leuchtmann's trial experience is considerable.  Before joining the firm, Mr. Leuchtmann served as a prosecutor for over fourteen and a half years - including six and a half years as a federal prosecutor with the U.S. Attorney's Office for the Southern District of Texas, one of the largest U.S. Attorney's Offices in the nation.  During his career, Andrew prosecuted complex white collar fraud, money laundering and financial fraud, healthcare fraud, national security, public corruption, trademark counterfeiting and capital murder cases against a variety of criminal defendants including gang members, elected officials, doctors, lawyers and other white collar professionals, police officers, and terrorists to name a few. On multiple occasions he served as a faculty member for both the Texas District & County Attorneys Association and at the National Advocacy Center in Columbia, South Carolina, where he taught incoming federal prosecutors the intricacies of trying cases in federal court. 

Mr. Leuchtmann spent his last several years at the U.S. Attorney’s Office in the Special Prosecutions Section where he prosecuted national security and public corruption cases. He has worked with the FBI’s counter-terrorism and counter-espionage sections, as well as various other agencies within the military and intelligence communities handling matters involving individuals suspected of lending material support to designated foreign terrorist organizations and individuals suspected of acting as unregistered agents of a foreign power. During that period, he also prosecuted elected officials, prison guards, police officers, and other public figures involved in various corruption schemes.

Originally from the Chicago area, Mr. Leuchtmann and his wife recently returned to the area to be close to his family.  Upon his return, Mr. Leuchtmann spent a year serving as a Kane County States Attorney working in the Children's Advocacy Center and prosecuting child abuse cases. 

Mr. Leuchtmann is an avid soccer player and fan having played on the Division I Men's College Soccer Team at Cleveland State University where he was nominated for Academic All-American status.  After transferring schools, he also served as team captain for the Men's Varsity College Soccer team at Judson College.


Mr. Leuchtmann represents our clients in all litigation matters including corporate and business disputes, financial fraud matters, real estate litigation, contested estate and trust litigation, personal injury, nursing home, and wrongful death actions.  Mr. Leuchtmann also provides internal investigation services for our business and corporate clients.  Mr. Leuchtmann also represents professionals accused of white collar criminal activity and financial fraud claims.


  • State of Illinois, 2017

  • State of Texas, 2004 (Inactive)


  • University of Texas School of Law (J.D. 2004)

  • Judson College (B.A. 2000)


DuPage County Bar Association

Illinois State Bar Association


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Jamie L. Gates

Executive Assistant and Office Manager

Ms. Gates is the firm's Executive Assistant and Office Manager.  Ms. Gates has been with the firm since June of 2016, but she and Mr. Bishop worked together for several years at Huck Bouma, PC in Wheaton, Illinois.  Following her service in the United States Army, Ms. Gates accumulated more than 10 years of combined experience in the legal field working as an administrative assistant and as another' firm's office manager.  

Ms. Gates brings a great deal of knowledge and experience to the firm as both an executive legal assistant and as an office administrator.  In addition to ensuring the firm operates smoothly on a daily basis, Ms. Gates works closely with our attorneys and all of our clients to make sure there is an open line of communication at all times and our clients remain informed about the progress of their matters at all times.  With Ms. Gates as a member of our team, our firm has even greater capacity and flexibility to take on the most challenging legal work while still being highly responsive to our clients.  


  • Northern Illinois University, DeKalb, Illinois (B.S. Human Resources Management 2001)

  • Waubonsee Community College, Sugar Grove, Illinois (A.A.S. in Accounting 2005)

  • Austin Peay State University, Clarksville, Tennessee (A.S. 1998)


  • ​United States Army, Ft. Campbell, Kentucky (Automated Logistics Specialist 1995-1998)


Direct Line:  (630) 355-2648