Yes! You can use AI to fill out Form FL-115, Proof of Service of Summons (Family Law—Uniform Parentage—Custody and Support)

Users often check the boxes in Section 1 for the documents served but forget to fill in the corresponding form numbers in the blank spaces provided (e.g., 'Summons (form _____)'). The court needs to know the exact form numbers of the documents that were served to ensure the correct papers were delivered. An incomplete list can lead to the court questioning the validity of the service, potentially causing delays or requiring the documents to be served again. Always double-check that every blank for a checked document is filled with the correct form number.

The form explicitly states in Section 1 that the server must be at least 18 years of age and 'not a party to this action.' A common and critical error is for the Petitioner or Respondent to serve the papers themselves. This is strictly prohibited. If a party to the case serves the documents, the service is legally void, the case cannot move forward, and the entire process must be restarted, wasting time and money. To avoid this, service must be performed by a neutral third party, such as a friend, relative (over 18), or a professional process server.

Substituted service has multiple mandatory steps, and people often miss one. To be valid, the server must record the name of the person who received the papers, their relationship to the respondent, the date and time of delivery, AND the date the follow-up mailing was completed. Forgetting to perform and record the date of the subsequent mailing is a frequent mistake that invalidates the service. To prevent this, ensure every field in Section 3b is completed, and remember that leaving the papers and mailing them are two required parts of the same process.

Substituted service (Section 3b) is only permissible after the server has made diligent attempts to serve the respondent personally. The form requires a 'declaration of diligence' be attached, which is a sworn statement detailing the failed attempts at personal service. Many filers are unaware of this requirement and fail to attach the declaration. Without this proof of prior attempts, the court will reject the substituted service, forcing the party to attempt service again.

When using 'Mail and acknowledgment service' (Section 3c(1)), the proof of service is not the FL-115 form alone. The service is only complete once the respondent signs and returns the 'Notice and Acknowledgment of Receipt' (Form FL-117). A critical error is filing the FL-115 without attaching the signed FL-117. Without the signed acknowledgment, there is no legal proof of receipt, making the service invalid. Always wait to receive the signed FL-117 before filing the FL-115 with the court.

The person who served the papers must sign and date the declaration in Section 5 under penalty of perjury. An unsigned or undated form is legally worthless and will be immediately rejected by the court clerk. This mistake often happens when the server completes the form but forgets the final step before returning it to the petitioner. This delays the case until a properly signed form can be filed. The server should always review the form for accuracy, then sign and date it.

The Case Number, Court Name, Petitioner, and Respondent names must be filled out identically on both pages of the form and must match the original Petition. People sometimes make typos, use abbreviations, or forget to fill out the header on the second page. Any inconsistency can cause the clerk to reject the document or, worse, file it in the wrong case. Using an AI-powered tool like Instafill.ai can prevent this by auto-populating consistent header information across all pages of a document set.

The server must accurately declare their status in Section 4. A non-professional (like a friend or relative) often gets confused and may leave this section blank or check the wrong box. If the server is not a registered California process server, they must check box 4b. If they are a professional, they must complete all parts of 4c, including their registration number and county. An incorrect or incomplete declaration can cast doubt on the service's validity.

For both personal service (3a) and substituted service (3b), the form requires both the date and the time of delivery. Filers often remember to write down the date but forget to note and enter the specific time the papers were handed over. This detail is crucial, as it can be used to verify or contest the service later. An incomplete form may be rejected or challenged, so the server should always record the exact time of service.

This form is often available as a non-fillable PDF, leading people to print it and fill it out by hand. This can result in illegible handwriting, information crammed into small spaces, or smudged ink, making it difficult for the court clerk to read and process. A form that cannot be easily read may be rejected, forcing the filer to complete and refile it, causing unnecessary delays. To avoid this, it is best to use a fillable version of the form. Tools like Instafill.ai can convert non-fillable PDFs into fillable ones, ensuring all entries are neat, typed, and legible.