Atty. Mary E. Dennison

Atty. Mary E. Dennison

Mary E. Dennison works closely with business owners, individuals and organizations as a member of Hahn Loeser’s Labor & Employment practice area in the Firm’s Cleveland office.

Cleveland Cleveland 6 Years Experience 6 year
Call (216) 621-0150

Profile Summary

About Mary E. Dennison at a glance

Mary E. Dennison is a employment, workers comp, and litigation attorney based in Cleveland, Ohio, practicing at Hahn Loeser & Parks LLP. They have 6+ years of legal experience, licensed to practice since 2020. Admitted to practice in Ohio, Ohio State Bar Association (2020) and Pennsylvania, Pennsylvania Bar Association (2022). Educated at Capital University (J.D., 2020) and Wheeling Jesuit University (B.A., 2017). Recognitions include Best Lawyers in America — Labor and Employment Law - Management (2026), Best Lawyers in America — Litigation - Labor and Employment (2026), and Best Lawyers in America — Workers' Compensation Law - Employers (2026). Serves clients in Cleveland, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mary E. Dennison works closely with business owners, individuals and organizations as a member of Hahn Loeser’s Labor & Employment practice area in the Firm’s Cleveland office
  • Mary guides clients through a variety of legal issues, including employment agreements, confidentiality agreements, Worker’s Compensation, business formation and business operating agreements
  • Mary also has professional problem-solving experience in commercial litigation, appellate advocacy, warranty law, product liability and personal injury law
  • While completing her law degree, Mary served as a judicial extern to Justice R. Patrick DeWine of the Supreme Court of Ohio

Practice Areas Explained

Mary E. Dennison's Areas of Practice

Each practice area below reflects the types of cases Mary E. Dennison handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Mary E. Dennison is one of 151,622 employment attorneys indexed nationally. Browse employment attorneys in Ohio →

Workers Compensation

Workers compensation lawyers help injured workers get medical care, lost wages, and disability benefits. Free consult, no fee unless you win.

Mary E. Dennison is one of 49,806 workers comp attorneys indexed nationally. Browse workers comp attorneys in Ohio →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mary E. Dennison is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in Ohio →

Jurisdictional Context

Why local counsel matters in Ohio

Practicing law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Cleveland are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ohio courts without local counsel or pro hac vice admission.

Looking for additional Ohio attorneys? Browse all attorneys in Cleveland or all attorneys in Ohio.

Frequently Asked

Common questions about Mary E. Dennison

Where is Mary E. Dennison's law office located?
Mary E. Dennison's law practice is located in Cleveland, Ohio. The firm is Hahn Loeser & Parks LLP. You can contact the office directly through this profile page.
What practice areas does Mary E. Dennison handle?
Mary E. Dennison focuses on employment, workers comp, litigation. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has Mary E. Dennison practiced law?
Mary E. Dennison has 6+ years of legal experience and has been licensed since 2020.
Where did Mary E. Dennison go to law school?
Mary E. Dennison earned their education at (J.D., 2020); (B.A., 2017).
How can I contact Mary E. Dennison for a consultation?
You can contact Mary E. Dennison directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mary E. Dennison received?
Mary E. Dennison's notable recognition includes: Best Lawyers in America — Labor and Employment Law - Management; Best Lawyers in America — Litigation - Labor and Employment; Best Lawyers in America — Workers' Compensation Law - Employers; Best Lawyers in America — Awards:; Best Lawyers in America — Rising Star,.

Education

J.D.
Capital University
- 2020
B.A.
Wheeling Jesuit University
- 2017

Awards

Best Lawyers in America — Labor and Employment Law - Management
- 2026
Best Lawyers in America — Litigation - Labor and Employment
- 2026
Best Lawyers in America — Workers' Compensation Law - Employers
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Rising Star,
- 2026
Best Lawyers in America — Ohio Super Lawyers
- 2026
Best Lawyers in America — , 2024-25
- 2026

Bar Admissions

Ohio, Ohio State Bar Association
Admitted: 2020
Pennsylvania, Pennsylvania Bar Association
Admitted: 2022

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