Texas Property Code - PROP § 64.054. Enforcement by Notice to Assignor

(a) After default, or as otherwise agreed by the assignor, the assignee may give the assignor a notice demanding that the assignor pay the assignee the proceeds of any rents that the assignee is entitled to collect under Section 64.053.

(b) For the purposes of Section 64.053, the assignee begins enforcement under this section on the date on which the assignee gives notice to the assignor in accordance with Section 64.002.

(c) An assignee may not enforce an assignment of rents under this section if, on the date the security instrument was signed and the date of prospective enforcement, the real property constitutes the assignor's homestead on which is located a one-family to four-family dwelling.