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Erika Justine Wentzel

Family Attorney at Saint Charles, MO

5.0   3 reviews
  • State Years
    Illinois - IL 10 years
    Missouri - MO 12 years
  • Licensed for 10 years
    State IL
    Acquired 2012
    Active and Authorized to Practice Law No misconduct found
  • Licensed for 12 years
    State MO
    Acquired 2011
    Good Standing, Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Erika

Learn Erika’s areas of practice.

Practice areas
  1. Family
    Divorce, Paternity, Motions to Modify, Motions to Abate,

  2. Consumer protection
    Auto Fraud, Home Contractor Fraud

  3. Estate planning
    Trusts, Wills, Powers of Attorney, Estate Tax Avoidance Measures.

  4. Probate
    Decedent's Estates, Guardianships of Minors and Disabled Adults

I began my career focused on consumer protection legal work when a mover destroyed all of my furniture and gave me fake insurance information shortly after I passed the bar.  Trying to turn a negative experience into a positive one, I began volunteering as a consumer protection attorney for Legal Services of Eastern Missouri.  I volunteered there full time for several months prior to starting a law practice with a classmate in St. Louis County.  In that firm, my focus was on civil litigation matters and estate planning. I handled primarily consumer protection cases, including auto dealer fraud, home contractor disputes, debt collection defense, and representing tenants against landlords.  

I went on to found Flesner Wentzel, a general practice firm in St. Charles, Missouri in 2013.  I continue to selectively handle consumer protection, estate planning, and probate matters, however my primary focus at Flesner Wentzel is family law cases.  For more than five years, I have been helping clients with dissolutions, paternity cases, child custody, and child support matters. Our firm is not afraid to handle complex cases.  We work hard and ask for extraordinary relief when it is necessary.  Our willingness to handle cases that are outside the typical case have lead us to do complicated adoption work, work to get a child back after being kidnapped by family members, grand parents rights and third party custody cases, and LGBT dissolutions of civil unions/divorces.  While no one "wins" in family law cases, my firm and I give clients reasonable expectations and work hard to achieve our clients' goals. 

When I am not at work, I enjoy traveling, spending time with my family, and ecape rooms!

Photos and videos

Contact Erika

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Flesner Wentzel
820 S. Main St.
Suite 200
Saint Charles, MO, 63301


5.0 / 5.0
  3 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by anonymous | June 8, 2018
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Intelligent and Personable
I recently contacted the firm about a custody modification and was pleasantly surprised by Erika's personality. She was knowledgeable about legal matters, but she didn't talk to me like I was an idiot when I asked questions (and I had plenty of them lol). I met with a different lawyer (not at this firm) prior to speaking with Erika, and I originally planned to work with him. A friend convinced me to call Flesner Wentzel instead because she felt like the first lawyer would not truly fight for my kids in the courtroom. I'm glad I listened to her. The prices for custody matters are very reasonable, and you can do a monthly payment plan. I'm a single parent, so knowing I can afford court without falling behind on other bills gives me peace of mind. I plan to hire this firm to represent me in the near future.
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Posted by Leslie | March 30, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Lawyer
I had the extreme good fortune to have Erika Wentzel as my lawyer. I was going up against a New York stock exchange company that owns Plaza Mercedes West and knew it would be a tough fight against the big dog. Erika is very knowledgeable, prepared, and just overall excellent that I knew (and told her often) that no matter how it turned out she did the best job she could for me. I can not say enough great things about Erika. You are in great hands with Erika and her law firm. I strongly recommend Erika Wentzel and the Flesner Wentzel law firm of St. Charles, MO!!!!
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Posted by anonymous | August 6, 2014
Attentive Attorney
My ex and I worked out an agreement for an uncontested divorce and we both wanted to make sure our divorce was finalized as soon as possible. Erika was able to get our divorce filed quickly and had the judgment signed on the 31st day after filing (the soonest it could legally be finalized). She has also drafted and reviewed several business contracts for me. She always makes helpful suggestions for amendments or additions. I am very happy with the services I have received.
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  • Free Consultation 30 minutes
  • Hourly Rates $ 228-305 per hour
  • Pro bono 10 %
Payment methods
Cash, Check, Credit Card


AVVO RATING 8.3 (Excellent)

Work Experience

  • Partner
  • Flesner Wentzel
  • 2013 - Present
  • Partner
  • Mahley Wentzel Law and Mediation Group
  • 2011 - 2013
  • Volunteer Attorney
  • Legal Services Of Eastern Missouri
  • 2011 - 2012


  • Saint Louis University School of Law
  • JD - Juris Doctor
  • 2011
  • Southern Illinois University, Carbondale
  • BS - Bachelor of Science
  • 2007

Legal Cases

  • Wentzel v JT Motorsports et al
  • Judgment for Plaintiff in the amount of $43,000.00 plus prejudgment interest.


  • St. Louis County Bar Association
  • Member
  • 2012 - Present
  • Bar Association of Metropolitan St. Louis
  • Member
  • 2011 - Present

Languages Spoken

  • English

Honors and Awards

  • Top 40 Family Lawyer Under 40 In the State of Missouri
  • The American Society of Legal Advocates
  • 2016
  • 10 Best Award for Client Satisfaction
  • American Institute of Family Law Attorneys
  • 2016
  • Pro Bono Wall of Fame
  • Missouri Bar
  • 2013
  • Pro Bono Wall of Fame
  • Missouri Bar
  • 2012
  • Pro Bono Wall of Fame
  • Missouri Bar
  • 2011
View all awards


Speaking Engagements

  • Law Practice Management
  • Law Practice Management
  • 2014

Attorney endorsements

Received (7)
Given (13)
Endorse Erika
Consumer protection Attorney | Aug 05
Relationship: Fellow lawyer in community
"Erika knows more about consumer protection law than any lawyer I know. She works tirelessly for her clients no matter the case. I do not hesitate to send my clients to her when they are in need of consumer protection legal assistance."
Employment and labor Attorney | Dec 04
Relationship: Worked together on matter
"I've had the pleasure of knowing Erika for several years now and am currently working on a case with her. Erika has an incredibly strong work ethic and is a highly competent attorney, which is matched by her strong passion to fight for her clients' legal needs. I am happy to endorse her."
Unknown Attorney | Aug 12
Relationship: Worked together on matter
"I have had the opportunity to work with Erika on a number of matters, and have always found her to highly skilled, and an excellent advocate for her clients."
Employment and labor Attorney | Aug 06
Relationship: Co-worker
"Erika knows everything there is to know about protecting consumer and employee rights and effectively and tirelessly advocates on behalf of her clients."
Consumer protection Attorney | Jul 29
Relationship: Fellow lawyer in community
"I endorse this lawyer. Straight forward answers in complex issues. This attorney will be extremely helpful do contact her"
Consumer protection Attorney | Jul 22
Relationship: Co-worker
"I met Erika at a conference and we quickly determined that we have similar styles of practice and started to practice together. Erika does what her clients need and is not afraid to go up against large corporations with large, experienced legal teams and budgets that far surpass those of her clients. She helps every day people with every day problems that some lawyers might consider small, for example trouble with a used car purchase. Erika realizes that to some families, if a problem with a used car purchase is not fixed, a family member may be unable to get to work and lose their job or they may be forced into filing bankruptcy. She stops those things from happening."
Consumer protection Attorney | Jul 10
Relationship: Co-worker
"If you have a question about consumer protection, debt collection, fraud, or any unconscionable practices, Erika is the first person I go to. She knows the intricacies of Missouri consumer protection law better than anybody I know, and she gets results."
View more endorsements
Criminal defense
Personal injury
Criminal defense
Chapter 7 bankruptcy
Criminal defense
Defective and dangerous products
Child custody