Definition : Right of first refusal

Right which entitles a co-owner to purchase, before any other person, the fraction (divided co-ownership) or the undivided share (undivided co-ownership) that another co-owner wishes to sell. This right is generally found in the declaration of co-ownership of small immovables as well as in indivision agreements. It is also known  as "preemptive rights" or "pact of preference".