Over a Decade of
Combined Experience

Successful Case Results

About Us

Call For A Consultation(641) 530-8109

Mason City Criminal Defense And Family Law Attorneys

Established in 2022, O’Mara Law Office has been serving the Mason City area with proven success. We are consistent, patient and professional, giving each new case our undivided attention whilst walking you through each step of the process.

With O’Mara Law Office, you should expect the best. We are a new kind of law firm in a challenging and constantly changing market, where we help our clients overcome their most complex legal issues. We are waiting for your call.

Call For A Consultation(641) 530-8109

Guiding You Through Every Step of the Process

Being charged with a crime or dealing with the complex challenges surrounding a divorce or other family matters, can be overwhelming. At O’Mara Law Office, PLLC, we know what you’re going through. We give you our undivided attention, whether your case is straightforward or complex. We’re proud to serve the North Central Iowa community.

Nellie D. O’Mara works in criminal law, family law, and civil litigation. She has many years of experience defending the rights of her community in Iowa. Mario Ayllon Lazo practices family law and civil litigation. He speaks fluent Spanish as a native speaker. Both attorneys also provide mediation for family law cases. Each provides consistent and professional legal care to their clients. O’Mara Law Office, PLLC, has had proven success in Mason City and continues to help clients in criminal law, family law, and estate planning law.

Our Areas
Of Practice

Types Of Cases We Handle

Exceptional Advocacy

10% Discount For
Active Duty Military
Or Veterans

As a thank you for all that the military members and veterans have done for us and because this is an issue that is very close to our hearts, O’Mara Law Office offers a 10% discount for any legal services provided to active duty military or veterans.

Thank You For Your Service!

Contact O’Mara Law Office, PLLC, for compassionate and patient legal guidance.

We work with the following group legal plans:

75 Jury Trials of

Top Rated &
Trusted Attorneys

Client Satisfaction
Is My #1 Priority

Respected In The
Legal Community

Meet Our Dedicated Criminal
Defense & Family Law Attorneys

Meet Our Team

Nellie D. O’mara

Attorney & Mediator

Mario Ayllon Lazo

Associate & Mediator

What Our Clients Say

Client Testimonials

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free consultation

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