"“All Clients Deserve Ethical, Professional, Excellent Service, Which We Strive for Every Day.”"
– Timothy M. Sullivan, Esq.

Management Team


Tim 10 29 15      Timothy M. Sullivan, Esq.


      Phone: 440-348-9301

      Email: Tim@tmslaw.net

Mr. Sullivan began his career serving his country as a JAG Attorney in the U.S. Navy. While stationed in Washington D.C., Tim earned an advanced law degree in taxation from Georgetown University, graduating with distinction. Upon separating from the Navy, he spent several years representing clients in tax matters at two of the country’s largest accounting and law firms and then spent six years (2001-2007) as the General Counsel and Treasurer of a large manufacturing company in northeast Ohio. In that position, he was responsible for the management of the company’s legal and financial matters.

In 2000, Mr. Sullivan entered the collection industry and today serves as the Managing Attorney of the Law Offices of Timothy M. Sullivan, as well as being President of its sister company HS Financial Group, a nationally-licensed collection agency. Notably, as Managing Attorney of the law firm he serves as Collections Special Counsel to the Ohio Attorney General. In this capacity he has handled hundreds of non-bankruptcy and bankruptcy matters involving dozens of different State departments.

Tim graduated with a BA from Vanderbilt University and obtained his Juris Doctorate from Case Western Reserve University School of Law and his Master of Laws in Taxation (LL.M) from Georgetown University. 

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      Jeffrey L. Koberg, Esq.


      Phone: 440-871-8805 ext. 123

      Email: jkoberg@tmslaw.net

Jeff Koberg has been practicing law since 1990. His areas of practice include: Commercial Litigation-Creditor's Rights, Retail Litigation-Creditor's Rights, Foreclosure Representation, and Loan Workouts. He is a member of the Commercial Law League of America, National Association of Retail Collection Attorneys, the Ohio State Bar Association, and the Cleveland Metropolitan Bar Association. Jeff brings extensive knowledge to the management team from his 26 years of Creditor's Rights and Commercial Collections experience.
Mr. Koberg graduated with a B.S. in Public Policy, Public Personnel Management, and Public Finance from Indiana University. He earned his J.D. from Case Western Reserve University Law School.


      Crystal Duplay, Esq.

      Associate Attorney

      Phone: 440-348-9307

      Email: Crystal@tmslaw.net

Crystal Duplay has been practicing law since 2009. She is admitted to practice in both Ohio and Wisconsin. Prior to joining the Law Offices of Timothy M. Sullivan, Ms. Duplay worked at a Cleveland area Creditor's Rights law firm,  where she managed the student debt portfolio. Ms. Duplay oversees all legal matters for the business and serves as the primary legal advisor to the President and the organization’s senior management team. Her core strengths include litigation, Fair Debt Collection Practices Act (FDCPA) matters, research, regulatory compliance,  negotiations, analysis, diplomacy, communications and problem solving.  She is a member of the Cleveland Metropolitan  Bar Association. 

Ms. Duplay  graduated with a BA in Political Science and Spanish  from Baldwin Wallace University. She earned her law degree at Cleveland - Marshall College of Law at Cleveland State University.