Louisiana Revised Statutes — Title 47 (Revenue and Taxation)
La. R.S. 47:2321 — Fair market value; defined
Fair market value is the price for property which would be agreed upon between a willing and informed buyer and a willing and informed seller under usual and ordinary circumstances; it shall be the highest price estimated in terms of money which property will bring if exposed for sale on the open market with reasonable time allowed to find a purchaser who is buying with knowledge of all the uses and purposes to which the property is best adapted and for which it can be legally used.
Source: official text