Firm Overview

Attorneys

Family and divorce law firm focused on solving problems and achieving the best possible result for our clients.

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Partner / Family Law Mediator

Erin E. Masters

Erin E. Masters is the principal of Masters Law Group, located in Chicago, Illinois. Masters Law Group concentrates in area of domestic relations, which includes divorce, allocation of parental responsibilities, child support and Hague Convention/ international child abduction matters.

Erin E. Masters is the principal of Masters Law Group, located in Chicago, Illinois. Masters Law Group concentrates in area of domestic relations, which includes divorce, allocation of parental responsibilities, child support and Hague Convention/ international child abduction matters.

Ms. Masters earned her Bachelors of Arts degree in Psychology from the University of California, San Diego, where she attended on a merit based scholarship, was a member of the Athlete Honor Roll, a participant of the NCAA Division II Track and Field Team and graduated in three (3) years with Provost’s Honors.

Ms. Masters received her Juris Doctorate and Certificate in Child and Family Law from Loyola University of Chicago, School of Law, in May of 2004. She was admitted to the Illinois Bar in November 2004 and to the General Bar for the United States District Court for the Northern District of Illinois in 2005 and the United States District Court for the Eastern District of Wisconsin in 2020. Ms. Masters was admitted to the United States Supreme Court in March 2009.

Throughout her career Ms. Masters has represented a variety of clients, both pre-decree and post-decree. Additionally she has prepared Prenuptial Agreements, drafted Marital Settlement Agreements and Final Allocation of Parental Responsibilities Orders, as well as prosecuted and defended Orders of Protection. Ms. Masters has also successfully litigated matters concerning modification and enforcement of child support,
allocation of parental responsibilities and parenting time.

In addition to representing clients, Ms. Masters is also a court-appointed Child Representative and has experience advocating for children in these high-conflict matters. Further, she has also been appointed by the Circuit Court of Cook County to mediate complex family law cases. Since 2016, Ms. Masters has been named “Rising Star” by Illinois Super Lawyers and has been named as an “Emerging Lawyer” by Leading Lawyers. In 2020, Ms. Masters was named “Super Lawyer” by Illinois Super Lawyers.

Masters Law Group recognizes that your family law matter is unique to you and your family. Ms. Masters concentrates her practice in area of domestic relations, which includes divorce, allocation of parental responsibilities, child support and Hague Convention/ international child abduction and other family related matters.

State Bar Admissions:

  • Illinois

Supreme Court Admission:

  • Supreme Court of the United States

Federal Appellate Court Admissions:

  • The United States Court of Appeals for the Seventh Circuit
  • The United States Court of Appeals for the Tenth Circuit

Federal District Court Admissions:

  • The United States District Court for the Northern District of Illinois
  • The United States District Court for the Eastern District of Wisconsin
  • The United States District Court for the District of North Dakota
  • The United States District Court for the District of Colorado
  • The United States District Court for the Western District of Michigan
  • The United States District Court for the Southern District of Iowa
  • The United States District Court for the Eastern District of Missouri
  • The United States District Court for the Southern District of Indiana

Partner

Anthony G. Joseph

Anthony G. Joseph is a Partner at the firm of Masters Law Group, LLC. Mr. Joseph received his B.A. degree in Global Economic Relations from the University of the Pacific in Stockton, CA.

Mr. Joseph obtained both his J.D. degree and Certificate in Trial Advocacy from The John Marshall Law School in Chicago, Illinois. He was admitted to the Illinois Bar in November 2010, the Federal General Bar and Trial Bar for the United States District Court for the Northern District of Illinois in 2012 and the State Bar of California on September 26, 2025.

Mr. Joseph is an active trial lawyer whose practice focuses exclusively on Family Law, with a particular emphasis on International Child Abduction and cross-border custody issues pursuant to the Hague Convention of 1980 and the UCCJEA. Mr. Joseph also publishes in the area of international family law. Mr. Joseph is a Fellow with the International Academy of Family Lawyers and has served as an expert witness in matters relating to The Hague Convention of 1980.

Anthony G. Joseph is a Partner at the firm of Masters Law Group, LLC. Mr. Joseph received his B.A. degree in Global Economic Relations from the University of the Pacific in Stockton, CA.

Mr. Joseph obtained both his J.D. degree and Certificate in Trial Advocacy from The John Marshall Law School in Chicago, Illinois. He was admitted to the Illinois Bar in November 2010, the Federal General Bar and Trial Bar for the United States District Court for the Northern District of Illinois in 2012 and the State Bar of California on September 26, 2025.

Mr. Joseph is an active trial lawyer whose practice focuses exclusively on Family Law, with a particular emphasis on International Child Abduction and cross-border custody issues pursuant to the Hague Convention of 1980 and the UCCJEA. Mr. Joseph also publishes in the area of international family law. Mr. Joseph is a Fellow with the International Academy of Family Lawyers and has served as an expert witness in matters relating to The Hague Convention of 1980.

Mr. Joseph has also served as an adjunct professor at DePaul University in Chicago, Illinois. Mr. Joseph is “AV” Preeminent Rating from Martindale-Hubbell Peer Review, which is the highest peer review rating available and has been named a “Rising Star” by Illinois Super Lawyers in both 2019, 2020 and 2021. Mr. Joseph is also on the list of approved Guardian Ad Litem/Child Representatives for the Domestic Relations Division of the Circuit Court of Cook County.

Mr. Joseph has also litigated cases in both the state court of Illinois and multiple United States Federal Courts involving the Hague Convention of 1980 and international child abduction issues. Finally, Mr. Joseph also concentrates his practice in area of domestic relations, which includes divorce, allocation of parental responsibilities and child support as well as prosecuted and defended Orders of Protection.

State Bar Admissions:

  • Illinois
  • California

Federal Appellate Court Admissions:

  • The United States Court of Appeals for the Seventh Circuit
  • The United States Court of Appeals for the Tenth Circuit

Federal District Court Admissions:

  • The United States District Court for the Northern District of Illinois
  • The United States District Court for the Eastern District of Wisconsin
  • The United States District Court for the District of North Dakota
  • The United States District Court for the District of Colorado
  • The United States District Court for the Western District of Michigan
  • The United States District Court for the Southern District of Iowa
  • The United States District Court for the Eastern District of Missouri
  • The United States District Court for the Southern District of Indiana
  • The United States District Court for the Southern District of California
  • The United States District Court for the Central District of California
  • The United States District Court for the Northern District of California

Associate Attorney

Mitchell Pearl

Mitchell S. Pearl is an Associate Attorney at Masters Law Group, concentrating his practice in family law, including divorce, parentage, allocation of parental responsibilities, and child support matters. He is dedicated to guiding clients through complex and emotionally charged legal challenges with professionalism, compassion, and strategic focus.

Prior to joining Masters Law Group, Mitchell gained extensive litigation experience at several respected law firms throughout Chicago, where he managed a diverse range of cases spanning family law, insurance coverage, and civil liability defense. Most recently, at Reidy Law Office, LLC, he handled an active caseload of over forty family law matters in both Will and Cook Counties, regularly appearing in court for hearings, pretrials, and settlement negotiations. His experience also includes drafting settlement agreements, conducting depositions, and managing discovery in contested cases.

Mitchell S. Pearl is an Associate Attorney at Masters Law Group, concentrating his practice in family law, including divorce, parentage, allocation of parental responsibilities, and child support matters. He is dedicated to guiding clients through complex and emotionally charged legal challenges with professionalism, compassion, and strategic focus.

Prior to joining Masters Law Group, Mitchell gained extensive litigation experience at several respected law firms throughout Chicago, where he managed a diverse range of cases spanning family law, insurance coverage, and civil liability defense. Most recently, at Reidy Law Office, LLC, he handled an active caseload of over forty family law matters in both Will and Cook Counties, regularly appearing in court for hearings, pretrials, and settlement negotiations. His experience also includes drafting settlement agreements, conducting depositions, and managing discovery in contested cases.

Earlier in his career, Mitchell served as an associate attorney at multiple prominent defense firms—including Hinkhouse Williams Walsh LLP, Knell O’Connor Danielewicz, and Traub Lieberman Straus & Shrewsberry LLP—where he developed strong analytical and advocacy skills through his work on complex litigation and insurance coverage matters across multiple jurisdictions.

Mitchell earned his Juris Doctor from DePaul University College of Law and his Bachelor’s Degree in Political Science from the University of Illinois at Chicago. He is admitted to practice law in the State of Illinois.

Outside the courtroom, Mitchell is committed to providing clear, solution-oriented counsel to clients, helping them navigate family transitions and protect what matters most.

State Bar Admissions:

  • Illinois

Associate Attorney (License Pending Swearing-In and Admission on November 5, 2025)

Joseph Valenziano

Joseph Valenziano is an Associate Attorney with Masters Law Group, focusing his practice on family law and international child abduction cases under the Hague Convention. Joseph is dedicated to providing compassionate, client-centered representation in complex and emotionally sensitive matters involving divorce, custody, and parental responsibility disputes.

Before joining Masters Law Group as an attorney, Joseph served as a Law Clerk with the firm, where he developed extensive experience supporting litigation teams on both domestic and international family law matters. During his clerkship, he drafted motions and pleadings, conducted legal research on jurisdictional and procedural issues, and assisted in preparing filings in both Cook County Domestic Relations Court and federal court. He also worked closely with the firm’s Guardian ad Litem in conducting investigations and preparing recommendations regarding the best interests of children.

Joseph Valenziano is an Associate Attorney with Masters Law Group, focusing his practice on family law and international child abduction cases under the Hague Convention. Joseph is dedicated to providing compassionate, client-centered representation in complex and emotionally sensitive matters involving divorce, custody, and parental responsibility disputes.

Before joining Masters Law Group as an attorney, Joseph served as a Law Clerk with the firm, where he developed extensive experience supporting litigation teams on both domestic and international family law matters. During his clerkship, he drafted motions and pleadings, conducted legal research on jurisdictional and procedural issues, and assisted in preparing filings in both Cook County Domestic Relations Court and federal court. He also worked closely with the firm’s Guardian ad Litem in conducting investigations and preparing recommendations regarding the best interests of children.

Joseph earned his Juris Doctor from the University of Illinois Chicago School of Law, where he was a Barrister’s Scholarship recipient and an active member of several student organizations, including the Family Law Association, Dean Frossard’s Student Advisory Board, and the Justinian Society. He completed his undergraduate studies at Western Michigan University, earning a Bachelor of Science in Psychology with Dean’s List recognition for five semesters.

Having successfully passed the Illinois Bar Examination, Joseph is awaiting his swearing-in ceremony on November 5, 2025, at which point he will be officially licensed to practice law in Illinois.

State Bar Admissions:

  • Illinois

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Masters Law Group LLC has a unique depth of knowledge, experience and talent in the Family Law and Divorce field.

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