Remembering
William M. Anderson IV, Attorney at Law
William M. Anderson IV founded Anderson Law Offices in 1979, shortly after
earning his Juris Doctor from Saint Louis University School of Law in 1978. What
began as a downtown Peoria practice has grown into a widely known and
well-respected law firm serving individuals, families, businesses, and municipalities
throughout Central Illinois for approximately five decades. Attorney Anderson began
his career with the prestigious law firm of Kavanaugh, Scully, Sudow, White, & Frederick
of Peoria, IL and in 1979 founded Anderson Law Offices. He has represented and
continues to represent everything from private and public corporations and several
local communities to private individuals from any and all walks of life.
Attorney Anderson prefers to be known as “Bill” to his clients, opponents, and
Judges throughout the State of Illinois and his reputation is widely known and
recognized for his exceptional ability to understand and process knowledge and
arguments at an incredible speed, employing his flexible mind honed through
tens of thousands of cases and trials, and an enormous breadth of legal, business,
and life experiences.Bill often finds solutions where others have failed to do so. It is
very common for other attorneys to seek his advice and counsel on difficult and complex
legal issues. Indeed, much of Attorney Anderson’s practice consists of work referred to
him by other attorneys seeking his unusual skills and experience to find a solution
where others have failed to be able to do so.
In his private time, Bill’s unusual abilities have drawn him to extreme sports including many years’ experiences as a pilot of high-performance aerobatic aircraft and a skydiver with over a thousand jumps. Each of these skydives involved hurtling to the earth at approximately 125 mph and opening his main canopy approximately 12 seconds before impact with the earth. This intense life or death pressure makes Bill come alive and is an example of why he is such an effective litigator, counselor, and negotiator. Sometimes losing or quitting is not an option. When that happens, Bill is the man to have in your corner.
Once accepted as a client of Anderson Law Offices, Bill believes that each client is entitled to the same courtesy, dignity, and dedication regardless of their financial circumstances or the size of their case or issue. Attorney Anderson has always dedicated a significant portion of his practice to serving the needs of the less fortunate and underprivileged and has been locally recognized for his pro-bono efforts. Attorney Anderson has an uncanny ability to see legal issue and problems through different lenses and perspectives often leading to innovative and creative solutions to legal issues that clients may not have been able to recognize, meeting the needs of clients in all different ways.
Working alongside the firm’s dedicated staff, Attorney Anderson believes that every client deserves honest advice, personal attention, and experienced representation. He has prosecuted and defended cases fearlessly and successfully against many opponents that others would fear to oppose. He is licensed in State and Federal Courts and has argued cases throughout Central Illinois in State, Federal, Appellate, and Supreme Courts.For generations, clients throughout Central Illinois have relied on
William M. Anderson IV and Anderson Law Offices for experienced legal representation grounded in professionalism, integrity, and an unwavering commitment to serving their clients and communities.
One of Bill’s greatest joys in life was having the opportunity to work alongside his daughter, Kaitlin. Their time together at Anderson Law Offices was so much more than simply working side by side—it was a part of the legacy they were building together, and a bond that meant so much to him. He was immensely proud of Kaitlin and all that she had accomplished, and he would have been beaming with pride to watch her finish her final semester of law school, graduate, be sworn in as an attorney, and ultimately carry on his legacy at Anderson Law Offices.
Kaitlin M. Margetis Anderson, paralegal
Kaitlin assists clients in a wide range of legal matters, including family law, probate,
estate planning, real estate transactions, municipal law, and civil litigation. She is
dedicated to providing clients through legal support, responsive communication, and
providing practical solutions to complex legal challenges.
Kaitlin graduated Summa Cum Laude with her Bachelor of Science in Business degree
at the University of Phoenix, where she studied Business Administration and is currently
completing her final year at the University of Illinois Chicago School of Law, where she has
distinguished herself academically while balancing the responsibiltiies of a demanding legal
career and family life. Throughout law school, she has maintained strong academic performace
while gaining extensive hands-on experience experience drafting pleadings, conducting legal
research,preparing discovery, and assisting with litigation and transactional matters. Kaitlin
was recognized on the UIC Moot Court Honors Counsel and awarded the Beaulieu Family
Scholarship that recognizes students who strive to make an impact in their communities.
Kaitlin also gained valuable courtroom experience in 2025 thorough her internship at the
Tazewell County States Attorney's Office, where she worked on a variety of criminal and
civil matters. Her background provides her with a well-rounded understanding of the
legal system and the challenges clients face when navigating legal disputes. Kaitlin is
passionate about helping individuals and families through difficult legal situations and
strives to provide compassionate, client-focused service. She is deep-rooted in her belief
that every client deserves honest advice, dilligent representation, and a clear understanding
of their legal options.
In Kaitlin's free time, she enjoys spending time with her family, suporting her children's
activities, and serving the communities of Central Illinois.
Breanna R. Green, Attorney at Law
Breanna is licensed to practice law in the State of Illinois, the Federal Central District of Illinois,
and the United States Court of Appeals for the Seventh Circuit. Breanna is also a member of
the CJA Training Panel for the Central District of Illinois.
and ability to communicate complex legal issues in a clear and accessible manner. She is
committed to guiding clients through the legal process while pursuing resolutions that
safeguard their interests. In matters involving children and families, Breanna places a strong
emphasis on promoting stability, well-being, and long-term success.
Breanna graduated Summa Cum Laude with her Bachelor of Science at Bradley University,
where she studied Political Science. During her time at Bradley, Breanna was awarded the
Presidential Scholarship and the Williams M. Voelker Memorial Scholarship, which is awarded
to an undergraduate student with plans to attend law school. Breanna then went on to obtain
her law license from the University of Illinois Urbana-Champaign College of Law, where she was
awarded a full tuition scholarship. Breanna was also awarded a Pro Bono Notation for completing
volunteer work while enrolled at the institution, and a Judicial Internship Opportunity Program
Scholarship from the American Bar Association.
Through a two-year externship with Judge Holliman, Breanna acquired significant courtroom
experience in eviction, civil, and small claims matters. In addition, she gained hands-on experience
assisting with criminal defense and personal injury cases, further strengthening her litigation skills
and understanding of the judicial process.
When not assisting clients, Breanna enjoys reading, exploring her family's genealogy, and playing
the guitar and piano.
Haylee L. Frederick, paralegal
Haylee works closely with clients in a wide range of legal matters, including personal injury, 
criminal defense, real estate transactions, probate administration, and estate planning. Her
attention to detail, strong work ethic, and commitment to client service make her an important
asset to the firm's daily operations.
Haylee studied Journalism, Political Science, and Legal Studies at Bradley University, where
she earned her Bachelor of Science degree in 2024. Haylee was awarded the Presidential
Scholarship, and initiated into Pi Gamma Mu Honor Society, which recognizes students who
excel academically in social sciences. Currently, Haylee is actively pursuing a career in the legal
field with plans to attend law school in the near future.
During her time at Bradley, Haylee completed more than 100 hours of community service,
reflecting her longstanding commitment to helping others and giving back to her community.
Her volunteer experience has reinforced her desire to pursue a legal career centered on service,
advocacy, and making a meaningful difference in the lives of others.
Haylee is passionate about helping individuals and families navigate complex legal issues and
takes pride in supporting clients through every stage of the legal process. She has a particular
interest in personal injury law, where she finds it especially rewarding to help clients feel supported
and cared for during some of the most challenging and emotional periods of their lives.
Haylee is committed to providing compassionate service and ensuring that clients feel informed,
understood,and confident as their legal matters move forward. Her dedication to serving others
continues to drive her professional growth and future aspirations in the legal field.
In Haylee's free time, she enjoys spending time with friends, trying new coffee shops, and
visiting her family back home in Iowa!