Land sales, administrative law, and require little knowledge of the general civil law, zoning and real estate transactions and land sales to buy land will need a wide range of knowledge, and other taxes will also need knowledge. Land use planning laws, house-rent law, if their own people to leave descendants in the asset. -Invariant land is a permanent, legal knowledge of real estate transactions, and, other than agricultural land laws, tenancy laws, the Code of Civil Procedure, if it involved a real estate agent is also related Code, it You will need a vast knowledge of the law is.