Can. 1298
© Libreria Editrice Vaticana Source: vatican.va
Unless an asset is of little value, ecclesiastical goods are not to be sold or leased to the administrators of these goods or to their relatives up to the fourth degree of consanguinity or affinity without the special written permission of competent authority.
Read the whole title TITLE IIIContracts and Especially Alienation 1290–1298