PLLC, Professional Limited Liability Company: some states do not allow certain professionals to form an LLC that would limit the liability that results from the services professionals provide such as doctors, medical care; lawyers, legal advice; and accountants, accounting services; architects, architectural services; when the company formed offers the services of the professionals. Instead those states allow a PLLC or in the LLC statutes, the liability limitation only applies to the business side, such as creditors of the company, as opposed to the client/customer service side, the level of medical care, legal services, or accounting provided to clients. This is meant to maintain the higher ethical standards that these professionals have committed themselves to by becoming licensed in their profession and to prevent them from being immune (or at least limit their immunity) to malpractice suits.
Maryland For Corporations: "Company", if it is not preceded by the word "and" or a symbol for the word "and"; "Corporation", "Incorporated" or "Limited" or abbreviations; for Limited liability companies: "limited liability company", "L.L.C.", "LLC", "L.C.", or "LC"; for Limited liability partnerships: "limited liability partnership", "L.L.P." or "LLP"; for Limited partnerships: "limited partnership", "L.P.", or "LP"; for Limited liability limited partnerships: "limited liability limited partnership", "L.L.L.P.", or "LLLP"; for Professional corporations: "chartered", "chtd.", "professional association", "P.A.", "professional corporation", or "P.C." Maryland Code – Corporations and Associations § 1-502
Minnesota nonprofit corporations are not required to use any of these words; for business corporations, they must use "corporation", "incorporated", or "limited", or shall contain an abbreviation of one or more of these words, or the word "company" or the abbreviation "Co." if that word or abbreviation is not immediately preceded by the word "and" or the character "&" Chapter 302A, Section 302A.115 Minnesota Statutes (for Business Corporations); Chapter 317A, Section 317A.115 Minnesota Statutes (for non-profit corporations)