Most people have a general sense of what a lawyer does—they argue cases in court, draft contracts, or help with a divorce. But the legal profession is far broader and more nuanced than popular culture suggests. If you are researching the field for educational purposes, considering a legal career, or simply seeking to understand how the justice system works, this guide offers a thorough overview of what a lawyer is, what lawyers do, and how the profession is structured in the United States.

This resource is published by Legal Practice Group, an informational legal education platform. We are not a law firm, and we do not provide legal advice or representation. Our goal is to make legal concepts accessible and understandable for the public.

The Core Definition: What Is a Lawyer?

At its most basic level, a lawyer is a licensed professional trained in the law who advises and represents individuals, businesses, government agencies, and other organizations in legal matters. Lawyers interpret statutes, regulations, and case law; apply legal principles to specific factual situations; prepare and file legal documents; and advocate on behalf of clients in negotiations, administrative proceedings, and courtrooms.

In the United States, becoming a lawyer requires earning a law degree—typically a Juris Doctor (JD)—from a school accredited by the American Bar Association (ABA), passing a state bar examination, and satisfying character and fitness requirements established by the state's bar admissions authority. Once licensed, a lawyer is authorized to practice law within that jurisdiction, though some practice areas, such as federal immigration law or patent law, involve federal rather than state-specific licensing.

Lawyer vs. Attorney: Is There a Difference? In everyday usage, the words "lawyer" and "attorney" are interchangeable. Technically, a lawyer is anyone who has completed legal education, while an attorney (short for attorney-at-law) is a lawyer who has passed the bar and is licensed to practice. For most practical purposes in the United States, the distinction is minor. For a deeper dive, see our guide on whether attorney and lawyer are the same.

What Does a Lawyer Actually Do?

A lawyer's daily work varies dramatically depending on their practice area, work setting, and client base. That said, most lawyers spend their time on a core set of activities that fall into several broad categories:

Types of Lawyers: A Diverse Profession

The legal profession encompasses dozens of specialized practice areas. While some lawyers maintain a general practice handling a variety of matters, many focus on one or a few related areas. Below is an overview of some of the most common types of legal practitioners in the United States:

Criminal Lawyers

Prosecutors and defense attorneys handling misdemeanors, felonies, and federal crimes. Learn about criminal law.

Family Lawyers

Handle divorce, child custody, adoption, and domestic relations matters. Explore family law topics.

Corporate Lawyers

Advise businesses on formation, contracts, compliance, mergers, and governance. View corporate law resources.

Litigation Lawyers

Represent parties in civil lawsuits, from filing through trial and appeal. What is a litigation lawyer?

Real Estate Lawyers

Handle property transactions, zoning, landlord-tenant disputes, and land use.

Personal Injury Lawyers

Represent individuals injured in accidents, covering medical costs and lost wages.

Immigration Lawyers

Assist with visas, green cards, citizenship, and deportation defense.

Estate Planning Lawyers

Draft wills and trusts, and guide families through probate and asset distribution.

Beyond these common categories, lawyers also specialize in areas such as intellectual property, environmental law, tax law, bankruptcy, employment and labor law, civil rights, and many others. The breadth of the profession means that someone seeking legal information should look for resources specific to their area of concern.

Education and Licensing: The Path to Becoming a Lawyer

Understanding what a lawyer is also requires understanding the rigorous educational and licensing process that produces licensed attorneys. In the United States, the path is well-defined and regulated at both the national and state levels.

Undergraduate Education

The journey begins with a four-year bachelor's degree from an accredited college or university. No specific major is required for law school admission—students from political science, English, history, philosophy, economics, and STEM backgrounds all pursue legal careers. What matters most is academic performance, as law school admissions committees weigh undergraduate GPA heavily.

The LSAT and Law School Admission

Prospective law students must take the Law School Admission Test (LSAT), a standardized exam that assesses reading comprehension, analytical reasoning, and logical thinking. A strong LSAT score, combined with a solid GPA and compelling application materials, is essential for admission to competitive law schools. Some schools now also accept the GRE in place of the LSAT.

Juris Doctor (JD) Program

Law school is a three-year, full-time program at an ABA-accredited institution. The first year covers foundational subjects—contracts, torts, civil procedure, criminal law, property, and constitutional law. The second and third years allow for specialization through electives, clinical programs, internships, and extracurricular activities such as law review and moot court. Part-time programs, typically four years, are available for students balancing work or family obligations.

Bar Examination and Licensure

After earning a JD, graduates must pass the bar exam in the state where they intend to practice. The exam—typically administered over two days—tests knowledge of general legal principles and state-specific law. Most graduates spend eight to ten weeks in intensive preparation before sitting for the exam. After passing, candidates undergo a character and fitness review, which examines their background for any issues that might affect their fitness to practice law. Only after satisfying all requirements are they sworn in and licensed.

How the Legal Profession Is Regulated

Lawyers in the United States are regulated primarily at the state level. Each state has its own bar association or supreme court authority that sets rules for admission, professional conduct, and discipline. The ABA Model Rules of Professional Conduct serve as a template for most states' ethical codes, though specific rules vary by jurisdiction.

Key regulatory features include:

The Role of Lawyers in the Justice System

Lawyers serve an essential function in the American legal system. They act as intermediaries between the public and a complex body of laws, regulations, and procedures that would be difficult for most people to navigate alone. Whether drafting a will, negotiating a business deal, defending against criminal charges, or pursuing a civil claim, lawyers translate legal complexity into actionable guidance.

The profession also plays a broader societal role. Lawyers have historically been at the forefront of civil rights advocacy, legislative reform, and public interest litigation. Many provide pro bono—unpaid—legal services to individuals and organizations that cannot afford representation, helping to bridge the gap in access to justice.

Skills and Qualities of Effective Lawyers

Not all lawyers are the same, and effectiveness in the profession depends on a combination of training, experience, and personal qualities. Some of the attributes commonly associated with skilled legal practitioners include:

If you are interested in the financial aspects of the profession, our platform also offers information on which types of lawyers earn the highest incomes, along with other career-focused resources.

How Legal Fees Typically Work

Understanding what a lawyer is also means understanding how legal services are priced. Fee structures vary by practice area and case type:

Fee arrangements should always be discussed and documented clearly at the outset of any professional relationship. Many state bars require written fee agreements for certain types of cases.

When You Might Need Legal Information

People seek legal information for many reasons. You might be researching a specific legal question, trying to understand your rights in a particular situation, considering whether to consult with an attorney, or exploring a potential career in the field. Whatever your reason, starting with reliable, educational resources is a sensible first step.

Legal Practice Group maintains a growing library of informational guides across a wide range of topics. Whether you are looking for general knowledge about business and corporate law, criminal law information, family law matters, or personal injury topics, our platform is designed to provide clear, accessible, and trustworthy educational content.