Commercial law or business law is the body of law which governs business and commerce and is often considered to be a branch of civil law and deals both with issues of private law and public law. Commercial law regulates corporate contracts, hiring practices, and the manufacture and sales of consumer goods.

Investment law practice addresses issues of purchase and sale transaction involving public and privately held businesses, mergers, acquisitions and dispositions of assets, stock sales and exchanges, roll-ups, acquisitions and dispositions of partnership interests and joint venture interests, tender offers, re-capitalizations and similar business combinations.

One who has possession of real estate; an occupant, not necessarily a renter; the lessee under a lease. The estate or interest held is called a tenancy.

A legal term that encompasses land along with anything permanently affixed to the land, such as buildings. Real estate is often considered synonymous with real property (also sometimes called realty), in contrast with personal property, chattel, or personalty.