Heyl Royster

Ann Pieper

Peoria, IL

Joined Firm in 2022

Ann aspires to identify her clients' problems and finds workable, long-term solutions.

  • Guardian Ad Litem
  • Holds a Mediation Certificate and is Certified in Collaborative Law
  • Secondary Education Certificate post Master's level coursework, Roosevelt University
Read Full Bio

Ann Pieper

Attorney in Peoria, IL

Ann's approach to law is practical and realistic as she aspires to identify her clients' problems and find workable and long-term solutions. Sensible settlements are key. Ann regularly advises clients on policies and procedures to reduce litigation exposure. If litigation becomes a reality, Ann litigates on behalf of her clients in courtrooms and at the administrative agency level. 

Ann specializes her practice in family law Guardian Ad Litem work (representing the best interests of the child(ren) in contested custody litigation to the Court). Ann is also regularly appointed as a Guardian Ad Litem for disabled adults. She has expertise in municipal law, employer's side labor and employment concerns, including union and non-union negotiations, and school law (particularly special education issues). Ann has a unique familiarity with laws affecting Illinois libraries and regularly works with Phil Lenzini, assisting almost a full third of the libraries in the state of Illinois with their legal and budgetary concerns. Finally, Ann regularly serves many area municipalities as an administrative hearing officer, hearing contested ordinance violations in a quasi-judicial capacity.



J.D., Northern Illinois University College of Law

Secondary Education Certificate post Master’s level coursework, Roosevelt University

M.A., International Relations & Policy, Loyola University

B.A., Political Science & International Relations, Knox College

Licensure(s) and Admission(s)

Collaborative Law Certification

Illinois State Teaching Certificate, Secondary Education, Type 9

Mediation Certificate

State Courts of Illinois

United States District Court for the Central District of Illinois

Professional Affiliations

Illinois State Bar Association

ARDC and Child Law Committees

Peoria County Bar Association

Tazewell County Bar Association

Community Involvement

Peoria Ballet, Board of Directors, Secretary



"Illinois New Child Support Guidelines, What They Mean and How They’ll Work,"  Peoria County Bar Association, Family Law Section Seminar (2017)

"Disciplinary Procedures and School Actions (or Inactions) That Can Result in a Lawsuit,"  National Business Institute (2017)

"Key Considerations in Implementing IEPs:  Discipline and Expulsion Essentials under IDEA,"  National Business Institute (2017)

"Representing Governmental Entities & Ethics, Who Is the Client?,"  Peoria County Bar Association (2017) 

"Overview of the Family Educational Rights and Privacy Act (FERPA)," National Business Institute Seminar (2016)

"Specifics of Maintaining and Handling Student Records," National Business Institute Seminar (2016)

"Allocation of Parental Responsibilities and Relocation under the IMDMA as Revised," Public Interest Law Initiative and Prairie State Legal Services Seminar on Family Law Basics (2016)

"Independent Contractor, or Not?  The Dangers Inherent in Misclassifying Your Employees," Peoria Chamber of Commerce Seminar for Business Owners (2016)

"Changes to the Fair Labor Standards Act and How it Affects Small Business, Not for Profits, Governmental Entities and Schools,"  Chamber of Commerce Meeting (2016)


“Illinois Tax Supported Public Libraries” Special Districts, IILCE (2019, 2023)

“Can a GAL Obtain Information from Counselors or Not?” ISBA Child Law Section Counsel Newsletter (2021)

"The Public Duty Rule Ends in Illinois," Illinois State Bar Association Local Government Law Section Newsletter (2016)

© 2024 Heyl Royster. All Rights Reserved.