Jennifer R. Piper


Jennifer R. Piper practices in all areas of family law. She received her law degree from St. Louis University School of Law and graduated from University of Missouri-Columbia, with a B.A. in political science.

She is a member of the Missouri Bar Association, the St. Louis County Bar Association, and the Illinois Bar Association. She is admitted to practice before the Missouri State Courts, the Illinois State Courts (no longer active), and the Federal District Court for the Eastern District of Missouri. Ms. Piper was named a Rising Star, Up and Coming Lawyer for the State of Missouri by Missouri Lawyers Weekly for 2009; a Rising Star, Up and Coming Lawyer for 2010-2015 by Missouri Super Lawyers; and was named to The Best Lawyers in America® 2017 and 2018 in the practice area of Family Law.

Ms. Piper served as a member of the 2010 and 2011 inaugural class of Barristers in The Theodore McMillian American Inn of Court. As a member and Past President of The St. Louis County Bar Association, Ms. Piper is still actively involved in the organization, and helps organize Continuing Legal Education Seminars and events. Ms. Piper was appointed and served on a special committee of the Missouri Bar Association dealing with issues involving juvenile cases and immigration. Ms. Piper was appointed by St. Louis County Circuit Court Judge Burton to serve on a special committee to improve the Family Court of St. Louis County that developed and implemented new local rules and procedures. Ms. Piper served on the Board of Directors for Caring for Kids, an organization developed and designed to provide essential resources to meet the urgent needs of children in foster care in St. Louis County.

Certified as a Guardian Ad Litem, Ms. Piper is regularly appointed to represent and protect children by Judges and Commissioners in St. Louis County and St. Louis City. Ms. Piper volunteers as a Guardian Ad Litem for the St. Louis County Domestic Violence Court Docket. Ms. Piper is certified as a Mediator for civil and family law matters. Also, Ms. Piper is a certified Parenting Coordinator and is regularly appointed by the Court to assist families with the most difficult custody matters.


Domestic Law Specialization

Ms. Piper has successfully represented numerous individuals in all areas of domestic law. Many cases have involved dissolutions, paternity actions, child custody disputes, child support disputes, adoption, juvenile law, abuse and neglect, property division, and guardianship proceedings. Ms. Piper has successfully argued in front of the Missouri Appellate Court on several occasions. Most notably, Ms. Piper argued in the reported case of Brown v. Shannahan, 141 S.W.3d 77 (Mo.App. E.D. 2004). In Brown, the Court agreed with Ms. Piper and established the following new holding: that the statute governing relocations of parents and minor children did not apply to cases where the court was making an initial determination of paternity and custody.


Phone: 314.333.4140
Fax: 314.754.9049

Honors & awards

Named to The Best Lawyers in America® 2017 and 2018 in the practice area of Family Law

Reinker, Hamilton & Piper, LLC listed with US News and World Reports Best Law Firms in the area of Family Law for the St. Louis Metro Area 2016-2018

Named Up and Coming Lawyer from Missouri Super Lawyers, 2010, 2011, 2013, 2014, 2015

Appointed to Special Committee of Missouri Bar Association addressing Juvenile Law and Immigration Issues, 2011

Named Up and Coming Lawyer from Lawyers Weekly, 2009

Appointed to Special Committee of St. Louis County addressing the Family Court rules and procedures

Martindale-Hubbell AV Preeminent Ranking

Education & Training

University of Missouri, Columbia, Missouri, 1998

  • B.A.

Saint Louis University School of Law, St. Louis, Missouri, 2001

  • J.D.

Areas of Practice

Family Law

Family Law Mediation

Estate and Probate Matters

Bar Admissions:

Missouri, 2001

U.S. District Court Eastern District of Missouri, 2001

Illinois, 2002

Speaking Engagements

  • Going Solo: How to Start Your Own Law Firm, 2016
  • Divorce over 50, 2014
  • Veteran’s Benefits in Divorce, 2013
  • Finding and Preserving Electronic Evidence, 2010

Professional Associations and Memberships

The Missouri Bar Association

Illinois Bar Association, Inactive

St. Louis County Bar Association, Past President

St. Louis County Bar Association, President, 2010

St. Louis County Bar Association, President Elect, 2009

St. Louis County Bar Association, Treasurer, 2008

St. Louis County Bar Association, Secretary, 2007

St. Louis County Bar Association, Executive Committee, 2003 – 2006

The Theodore McMillian Inns of Court, Barrister, Inaugural class 2010

St. Louis County Law Library, Board of Directors, 2004 – 2010

Caring For Kids, Board of Directors 2010-2013

The Missouri Bar Association Juvenile Courts and Law Committee, Vice-Chair 2011-2012