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About Our Firm

Experienced Attorneys in Johnson County, Kansas

Speak with a lawyer that focuses on your specific legal need!


"They represented me beyond my expectations. Richard Martin and Jerry Wallentine each represented me in two different cases. They resolved each case better than I could have ever imagined." - Taylor


Focused Criminal Defense & Family Law Attorneys

When you are dealing with important legal matters, you want an attorney on your side who is focused and well versed for your specific legal issue. We have lawyers focused on very specific legal areas. For example, our criminal defense attorney focuses on defending against criminal charges and has defended hundreds of his clients from serious misdemeanor to felony charges over the years. One of our other lawyers is a focused divorce attorney, who has helped hundreds of clients dealing with family law matters. With a substantial record of success, our law firm argues for favorable outcomes for our clients. When settlement proves impossible, we aggressively pursue your best interest at trial. The qualities that have helped our success in the courtroom and at the negotiation table include:

  • Powers of persuasion
  • Persistence
  • The love of the fight
  • Past successes and experience
  • Past jury trial wins

Our advocacy provides zealous legal services with compassion and competence; willing to champion our client’s cause. As your attorneys, we strive to provide the best legal representation with competence, courage and commitment. Our endeavor is to provide world-class lawyer legal service with emphasis on character and compassion. We are resolved to understand those we are meant to serve and to represent their interest diligently. Simply, our law firm believes that it serves itself best when it serves the clients most. It is in helping those who are oppressed in law that we find our true calling.

We will do everything we can to assist you and utilize all appropriate legal means for your benefit, often including the powerful subpoena tool.

Do not hesitate to contact the team at Martin & Wallentine, LLC when:

  • You Have Been Accused of a Crime
  • You Are Facing a Divorce
  • You Need Experienced Legal Help

Experienced Divorce Lawyer in Johnson County, Kansas

Attorney Richard Martin focuses on divorce law and has years of experience in family law. If you need experienced legal representation for a family law matter, Richard can provide the skilled counsel you need throughout the divorce process. You do not have to feel alone during your case. Our firm is available to assist you through each step of your divorce and to fight for your rights.

During a divorce case, we can argue persuasively to obtain court orders such as:

If you are in the midst of a child custody battle or any other legal issue associated with divorce, our team of experienced attorneys are here for you! Meet with us today to see how we can help you through the various elements of your case.

Aggressive Criminal Defense Lawyer in Olathe, KS


"I love to strategically evaluate each criminal case I take. Figuring out what is the best defense for each case provides a regular challenge and keeps me sharp. Even though I have been doing criminal defense for a long time, I am still excited to help my clients and fight for their rights and freedom"

- Attorney Jerry Wallentine


Jerry Wallentine began his career many years ago as a Kansas defense attorney, working with and being trained by the best lawyers in Kansas. Criminal defense continues to be his passion. He provides excellent legal defense for your criminal cases, whether you are dealing with a misdemeanor or felony. If you have been arrested, consult with our firm today.

With the representation of an experienced and trained Kansas criminal defense lawyer from our firm, your charges could be reduced or dismissed. We represent clients for serious crimes across Kansas. We have also helped many clients get an expungement of their past criminal record.

The majority of our criminal defense representation is in Johnson County, which includes:

Practicing law in Johnson County, Kansas provides an extra challenge for criminal defense, due to the competent prosecutors and strict judges in this area. However, we have defended many clients facing serious felony charges, as well as serious misdemeanor crimes, such as possession of marijuana. Please refer to the Kansas Sentencing Guidelines for a range of presumptive prison times for a felony conviciton.

We are proud to serve the residents of Kansas and Missouri, including Kansas City, Olathe, Johnson County, Leawood, Shawnee, Overland Park, Lenexa and Wyandotte County. If you have been charged with a serious crime, such as a sex crime, contact us right away. Sex crimes can be especially challenging due to the rape shield laws.

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The information on this website is for general information purposes only. Nothing on this site should be taken as legal advice for any individual case or situation. This information is not intended to create, and receipt or viewing does not constitute, an attorney-client relationship.