Reversed and Rendered and Memorandum Opinion filed July 2, 2024.

In The

Fourteenth Court of Appeals

NO. 14-23-00556-CV

FORT BEND COUNTY AND FORT BEND COUNTY CONSTABLE 3, 

WAYNE THOMPSON, IN HIS OFFICIAL CAPACITY, Appellants

V.

BILL GUERRERO, Appellee

On Appeal from the 240th District Court

Fort Bend County, Texas

Trial Court Cause No. 18-DCV-257000

M E M O R A N D U M O P I N I O N

Fort Bend County and a county constable (in his official capacity) appeal the 

denial of their plea to the jurisdiction in this whistleblower case. The dispositive 

issue is whether the plaintiff invoked the trial court’s jurisdiction by timely suing

within the applicable limitations period. Although the plaintiff filed his lawsuit on 

the last day of the limitations period, the record does not show that he diligently

attempted service on appellants after filing his petition and up to the time service 
2

was achieved. Under Texas law, therefore, appellee did not timely sue within the 

limitations period, which constitutes a jurisdictional defect when, as here, the suit 

is against a governmental entity. For this reason, the trial court erred in denying 

appellants’ plea to the jurisdiction. Accordingly, we reverse the trial court’s order 

denying appellants’ plea to the jurisdiction and render judgment dismissing the 

plaintiff’s suit.

Background

Appellee Bill Guerrero was a lieutenant employed by Fort Bend County 

Constable, Precinct 3. Wayne Thompson was the elected constable for Precinct 3. 

According to Guerrero’s petition, he reported a violation or violations of law 

allegedly committed by the constable’s office. Subsequently, the constable’s 

office terminated Guerrero’s employment on August 17, 2018. Ninety days later, 

on November 15, 2018, Guerrero sued the County and Thompson (in his official 

and individual capacities) for retaliation under the Whistleblower Act. See Tex. 

Gov’t Code § 554.002.

Appellants filed a plea to the jurisdiction. They argued that Guerrero’s 

claims must be dismissed because he failed to sue within the applicable limitations

period. Specifically, appellants contended that Guerrero did not exercise due 

diligence in serving appellants after the limitations period expired, which deprived 

the court of jurisdiction. In response, Guerrero argued that he filed suit within the 

statute of limitations and that the Whistleblower Act did not require diligence in 

service as a jurisdictional requirement.

The trial court granted the plea in part, dismissing all claims against 

Thompson in his individual capacity, and denied the plea in part as to all claims 

against the County and Thompson in his official capacity. Appellants filed this 

interlocutory appeal. See Tex. Civ. Prac. & Rem. Code § 51.014(a)(8).
3

Analysis

Appellants present three issues for review: (1) whether the trial court lacks 

jurisdiction over Guerrero’s suit because he did not diligently attempt service of 

process after filing his suit on the last day of the limitations period; (2) whether 

Constable Thompson can be sued in his official capacity under Chapter 554 of the 

Government Code when he is not alleged to be a unit of a state or local 

government; and (3) whether a private litigant can sue to collect the civil penalty 

provided in section 554.008 of the Texas Government Code.1 Because appellants’

first issue is dispositive, we begin and end there. See Tex. R. App. P. 47.1.

The Whistleblower Act states that a state or local governmental entity may 

not suspend or terminate the employment of, or take other adverse personnel action 

against, a public employee who in good faith reports a violation of law by the 

employing governmental entity or another public employee to an appropriate law 

enforcement authority. Tex. Gov’t Code § 554.002(a). The act contains an 

immunity waiver, stating:

A public employee who alleges a violation of this chapter may sue the 

employing state or local governmental entity for the relief provided by 

this chapter. Sovereign immunity is waived and abolished to the 

extent of liability for the relief allowed under this chapter for a 

violation of this chapter.

Id. § 554.0035.2

1

In an amended petition, Guerrero asserted a cause of action against Thompson for 

recovery of the civil penalty under section 554.008 of the Government Code. See Tex. Gov’t 

Code § 554.008(a) (“A supervisor who in violation of this chapter suspends or terminates the 

employment of a public employee or takes an adverse personnel action against the employee is 

liable for a civil penalty not to exceed $15,000.”).

2 The County is a governmental unit of the State and is immune from suit unless a 

plaintiff establishes a valid waiver. See Catalina Dev., Inc. v. County of El Paso, 121 S.W.3d 

704, 705 (Tex. 2003). Under Texas law, a suit against a government employee in his official 

capacity is a suit against his government employer with one exception: an action alleging that the 
4

Under the act, the employee “must sue” not later than the ninetieth day after

the date on which the employer’s alleged violation occurred or was discovered by 

the employee through reasonable diligence.

3 See id. § 554.005. The parties 

dispute whether the words “must sue” mean merely filing suit regardless when 

service is effected (Guerrero’s position) or filing suit and effectuating service

(appellants’ position).

Section 554.005 is titled “Limitation Period.” While such a heading cannot 

limit or expand the statute’s meaning, id. § 311.024, the heading “gives some 

indication of the Legislature’s intent,” In re United Servs. Auto. Ass’n, 307 S.W.3d 

299, 307 (Tex. 2010) (internal quotation omitted). We are confident that the 

Legislature intended section 554.005 to be a statute of limitations, as that term is 

traditionally understood.4 We construe the words “must sue” in the same vein as 

analogous language in other statutes of limitations, such as “bring suit.” See, e.g., 

Tex. Civ. Prac. & Rem. Code § 16.003 (statute of limitations for certain tort 

claims: “a person must bring suit” not later than two years); see also Tex. Lab. 

Code § 21.256 (statute of limitations for employment discrimination claims: “suit 

may not be brought” later than two years). 

As the Supreme Court of Texas recently noted in the context of suits against 

governmental entities, the phrase “bring suit” reflects “the traditional requirements 

to satisfy a statute of limitations,” namely “filing the petition and achieving service 

of process.” Tex. State Univ. v. Tanner, 689 S.W.3d 292, 2024 WL 1945340, at *4 

employee acted ultra vires. See Franka v. Velasquez, 332 S.W.3d 367, 382 & nn.68-69 (Tex. 

2011). With that exception, an employee sued in his official capacity has the same governmental 

immunity, derivatively, as his government employer. Id. at 382-83 & n.70.

3 This deadline can be extended in circumstances inapplicable here. Id. 

4

See “Limitation,” Black’s Law Dictionary (11th ed. 2019) (“3. A statutory period after 

which a lawsuit or prosecution cannot be brought in court. — Also termed limitations period; 

limitation period; limitation of action. See Statute of Limitations. Cf. Laches.”).
5

(Tex. May 3, 2024) (emphasis original). In Tanner, the plaintiff filed suit within 

the applicable limitations period but did not effectuate service on the governmental 

unit defendant until long after limitations had expired. Id. at *1-2. When a 

plaintiff files suit within the applicable limitations period but service is not 

accomplished until after the limitations period expires, the late service of process 

can relate back to the date the petition was filed and thus the suit will be 

considered timely. See id. at *1, 3. But service achieved after the limitations 

period expires will not relate back to the petition’s filing date unless the plaintiff 

diligently attempted service between the end of the limitations period and the date 

service is accomplished. Id. at *1, 3 (citing Proulx v. Wells, 235 S.W.3d 213, 215 

(Tex. 2007)). 

We interpret “must sue” under the Whistleblower Act in the same way as the 

supreme court construed “bring suit” in Tanner. Applying the act accordingly, the 

record conclusively shows that Guerrero did not satisfy the requirement that he 

“must sue” within the act’s ninety-day limitations period. It is undisputed that 

Guerrero filed suit within the statutory time period. It is also undisputed, however,

that Guerrero did not request service on appellants until forty-six days after the 

ninety-day period expired. Whether this late service prevented the running of 

limitations depends on whether Guerrero acted diligently to effect service up to the 

date service was accomplished. Id. at *3. The relevant inquiry in assessing 

diligence is whether the plaintiff “‘acted as an ordinarily prudent person would 

have acted under the same or similar circumstances and was diligent up until the 

time the defendant was served.’” Id. (quoting Proulx, 235 S.W.3d at 216). Any 

delay in service after limitations has run requires a non-conclusory explanation. 

Id. Diligence normally raises a fact question, but a plaintiff’s explanation may 

show a lack of diligence as a matter of law “when one or more lapses between 
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service efforts are unexplained or patently unreasonable.” Proulx, 235 S.W.3d at

216. To avoid dismissal (or, in a non-jurisdictional context, a take-nothing 

judgment), a plaintiff must “present evidence regarding the efforts that were made 

to serve the defendant, and to explain every lapse in effort or period of delay.” Id.

In response to appellants’ plea, Guerrero argued that he exercised reasonable 

diligence to effectuate service. The earliest record in question is a January 4, 2019 

email, memorializing a phone call between a County employee and a paralegal at 

Guerrero’s lawyer’s law firm concerning whether “the information was sufficient,” 

ostensibly in regards to the service of citation. Thus, Guerrero’s evidence shows a 

lapse in efforts to effectuate service of at least fifty days. However, appellants 

submitted a supplemental record showing that Guerrero first requested service on 

December 31, 2018. Even by this earlier date, the record shows a delay in 

requesting service of forty-six days after filing suit and the expiration of the 

limitations period.

Guerrero was required to present evidence explaining these delays. The 

only explanation offered was an affidavit from his attorney, who opined:

. . . I can conclude that Ms. Sprovach and her support staff 

exercised reasonable diligence. This is based on personal observation 

as to how the office staff, and attorneys including Ms. Sprovach 

handled matters such as obtaining and effectuating service, especially 

in difficult situations during the time period in question.

My expert opinion is supported by the review of records kept in 

the ordinary course of business in my law firm.

The above testimony is the type of conclusory statement that will not satisfy 

the claimant’s burden under Tanner. Our review of the record reveals no 

satisfactory evidence establishing factually that Guerrero acted as an ordinarily 

prudent person would have acted under the same or similar circumstances and was 
7

diligent up until the time appellants were served. See Tanner, 2024 WL 1945340, 

at *3. 

This court consistently has held that due diligence is lacking as a matter of 

law when comparable unexplained lapses of time exist between filing suit, 

issuance of citation, and service. Tran v. Trejos, No. 14-17-00998-CV, 2019 WL 

962605, at *3 (Tex. App.—Houston [14th Dist.] Feb. 28, 2019, no pet.) (mem. op.) 

(plaintiff failed to exercise due diligence when he did not explain lapse of fortythree days between expiration of limitations and service); Sharp v. Kroger Tex. 

L.P., 500 S.W.3d 117, 119 (Tex. App.—Houston [14th Dist.] 2016, no pet.) (citing 

Li v. Univ. of Tex. Health Sci. Ctr. at Houston, 984 S.W.2d 647, 652 (Tex. App.—

Houston [14th Dist.] 1998, pet. denied)); see also Mauricio v. Castro, 287 S.W.3d 

476, 480 (Tex. App.—Dallas 2009, no pet.) (plaintiff failed to exercise due 

diligence when he filed suit two weeks before limitations expired but offered no 

explanation for effecting service thirty-one days after limitations expired); 

Rodriguez v. Tisman & Houser, Inc., 13 S.W.3d 47, 51-52 (Tex. App.—San

Antonio 1999, pet. denied) (plaintiff failed to exercise due diligence even though 

service was accomplished a few weeks after limitations period expired). Because 

Guerrero did not exercise diligence in serving appellants after limitations expired, 

we hold that he did not sue appellants timely under the Whistleblower Act.

The next question is whether compliance with section 554.005 is a 

jurisdictional prerequisite to suit. The supreme court has squarely resolved this 

question. Most recently, in Tanner, the supreme court stated:

We accordingly hold that the statute of limitations, including the 

requirement of timely service, is jurisdictional in suits against

governmental entities. The University’s plea to the jurisdiction was 

therefore a proper vehicle to address Tanner’s alleged failure to 

exercise diligence in serving the University.
8

Id. at *6 (emphasis added); see also Tex. Gov’t Code § 311.034 (statutory 

prerequisites are jurisdictional requirements in all suits against a governmental 

entity). In an earlier decision specifically addressing the Whistleblower Act’s 

limitations period, the court held, “[t]he ninety-day filing deadline [in the 

Whistleblower Act] is thus a jurisdictional statutory prerequisite to suit, and a 

claim that fails to meet that deadline may properly be disposed of by a 

jurisdictional plea.” City of Madisonville v. Sims, 620 S.W.3d 375, 379 (Tex. 

2020) (per curiam). This court has held similarly. See Harris County v. Davidson, 

653 S.W.3d 318, 323 (Tex. App.—Houston [14th Dist.] 2022, no pet.) (dismissing 

plaintiff’s Whistleblower Act suit for lack of jurisdiction when he did not file 

within the act’s jurisdictional deadline).

Following this binding precedent, we hold that appellants’ plea to the 

jurisdiction was the proper vehicle to address Guerrero’s failure to serve appellants

within the limitations period and that, as explained above, appellants established 

their entitlement to dismissal as a matter of law.
9

Conclusion

Although Guerrero timely filed his petition, his failure to diligently 

effectuate service of process on appellants after the limitations period expired did 

not prevent limitations from running. Thus, the trial court lacked jurisdiction over 

his suit and erred in denying appellants’ plea to the jurisdiction. We sustain 

appellants’ first issue, reverse the trial court’s order, and render judgment 

dismissing Guerrero’s suit for lack of jurisdiction.5

/s/ Kevin Jewell

Justice

Panel consists of Justices Jewell, Bourliot, and Poissant.

5 We need not reach appellants’ remaining issues, regarding whether Thompson can be 

liable in his official capacity and whether a private litigant can sue to collect the civil penalty 

provided in section 554.008 of the Texas Government Code. Tex. R. App. P. 47.1.