What is needed for proof of diligent search in Florida?

In Florida, proof of a diligent search is required before a court will allow constructive service (such as service by publication). The proof is typically provided through a sworn statement or affidavit showing that reasonable efforts were made to locate the defendant but were unsuccessful. The statutory requirements are primarily governed by Chapter 49 of the Florida Statutes.

Governing Law

Service by publication in Florida requires a sworn statement demonstrating diligent search and inquiry under Fla. Stat. § 49.041. This statute governs what must be included in the affidavit when the defendant is a natural person.[1]

Elements Required in Proof of Diligent Search

Under Fla. Stat. § 49.041, the affidavit or sworn statement must establish the following:

• Diligent search and inquiry were conducted to discover the defendant’s name and residence, and the information obtained must be stated as specifically as known to the affiant.[1]
• Age of the defendant, if known, or a statement that the age is unknown.[1]
• Status of the defendant’s residence, showing one of the following:
  • The residence is unknown; or
  • The residence is outside Florida (and the location if known); or
  • The defendant is in Florida but has been absent for more than 60 days before the affidavit; or
  • The defendant is concealing themselves so that personal service cannot be accomplished and there is no person in Florida who could accept service on their behalf.[1]

These facts must be sworn to by the plaintiff, the plaintiff’s attorney, or an authorized agent in the affidavit supporting constructive service.[1]

What Constitutes a “Diligent Search” in Practice

Although Chapter 49 requires a sworn statement of diligent inquiry, Florida statutes and court guidance illustrate what a reasonable search generally includes. Courts typically expect efforts such as:

• Contacting known relatives of the person
• Checking hospitals or medical facilities in areas where the person lived
• Contacting recent employers
• Searching state and federal agencies likely to have information
• Contacting utility companies and postal providers
• Searching electronic people‑locator databases
• Contacting law enforcement agencies regarding the person’s whereabouts[2]

These steps illustrate the minimum type of investigative actions demonstrating that the party made genuine efforts to locate the individual before requesting constructive service.[2]

Supporting Documentation Typically Filed

Courts commonly require supporting documentation attached to the affidavit, such as:

• Search results from online locator databases
• Certified mail receipts to last known addresses
• Responses from government or military searches
• Affidavits listing inquiries made to relatives or contacts

Such documentation helps substantiate the sworn claim that a diligent search was conducted.

Key Legal Principle

Florida courts require strict compliance with the diligent search requirement before permitting service by publication because constructive service provides limited due process protections compared with personal service. The sworn affidavit demonstrating diligent inquiry is therefore a jurisdictional prerequisite to obtaining such service under Chapter 49.[1]

Summary

Proof of diligent search in Florida generally requires:

• A sworn affidavit of diligent search and inquiry;
• Detailed statements regarding efforts made to locate the defendant;
• Statements about the defendant’s age and residence status; and
• Documentation showing that reasonable investigative steps were taken before requesting constructive service.