It probably comes as no surprise that the vast majority of legal secretaries are employed by attorneys and law firms. But there are other industries and businesses within which you can be hired as a legal secretary. Private businesses that are large enough to warrant and employ them have legal departments. Nonprofit organizations do, too. Government agencies need legal secretaries. The insurance and financial industries, the healthcare industry, the real estate industry, and institutions of higher learning all employ legal secretaries.
Legal secretaries, of course, work in an office, although this may not be as "easy" a position as that might make it sound at first if there are a lot of clients that are handled by the firm one works for. It can be stressful to work for a larger firm, although you can expect at least a somewhat higher pay and more opportunity for advancement if you do. The office setting may be a private one, or it may be just a cubicle, or it may be an open office where several different secretaries work together. You'll need to know how to work basic modern office equipment like a personal computer, printer, fax machine, Xerox machine, business phone or switchboard, and perhaps a Dictaphone. It is also possible that if you have such a job you'll be required to deliver documents personally from the law office to the courthouse. Being a secretary for a law firm is not a "cush" job.
It should not be believed that a legal secretary is a paralegal (legal assistant). Some of their duties do overlap, but paralegals are there to do research into legal matters, collect data relevant to clients and their cases, and write legal memos. They must have at least an associate's or bachelor's degree in paralegal studies and have a more thorough understanding of the law than a legal secretary must have. But, if you do work as a legal secretary, it's an excellent way to gain some basic experiences that may inspire you to become a paralegal later on.
Working as a legal secretary can deepen your knowledge and your understanding of the law. This could, as mentioned, help you become a paralegal, perhaps even an attorney, later on in your career. It could also help you with personal matters, as you would learn to understand things about the legal system and the details of cases that would escape most people's awareness. The legal sectary is very important to the law firm or other agency or business that she serves. He or she is a liaison between the legal world and the public.