(a) For purposes of this code:
(1) on the divorce of a member, the member's spouse, to the extent of the spouse's membership interest, if any, is an assignee of the membership interest;
(2) on the death of a member, the member's surviving spouse, if any, and an heir, devisee, personal representative, or other successor of the member, to the extent of their respective membership interest, are assignees of the membership interest; and
(3) on the death of a member's spouse, an heir, devisee, personal representative, or other successor of the spouse, other than the member, to the extent of their respective membership interest, if any, is an assignee of the membership interest.
(b) This chapter does not impair an agreement for the purchase or sale of a membership interest at any time, including on the death or divorce of an owner of the membership interest.