Prop. Code Section 21.016
(a)Each party in an eminent domain proceeding is entitled to written notice issued by the special commissioners informing the party of the time and place of the hearing.
(b)Notice of the hearing must be served on a party not later than the 20th day before the day set for the hearing. A person competent to testify may serve the notice.
(c)A person who serves a notice shall return the original notice to the special commissioners on or before the day set for hearing. The person shall write a return of service on the notice that states how and when it was served.
(d)Notice may be served:
(1)by delivering a copy of the notice to the party or to the party’s agent or attorney;
(2)if the property being condemned belongs to a deceased’s estate or to a minor or other legally disabled person and the person or estate has a legal representative, by delivering a copy of the notice to the legal representative; or
(3)if the property being condemned belongs to a nonresident of this state and there has been no personal service on the owner, if the identity or the residence of the property owner is unknown, or if the property owner avoids service of notice by hiding, by publication in the same manner as service of citation by publication in other civil cases in the district courts or county courts at law.
Section 21.016 — Notice,
https://statutes.capitol.texas.gov/Docs/PR/htm/PR.21.htm#21.016 (accessed Dec. 2, 2023).