Arizona: What Counts as "Due Diligence" for Service of Process?
In Arizona, due diligence refers to making meaningful, persistent, and well-documented efforts to personally serve a defendant before asking the court to authorize an alternative method of service.
Courts expect the serving party to use every reasonable avenue to locate and serve the individual—physical, digital, and informational—before concluding that personal service is impracticable.
Fast Serve AZ applies a standardized diligence protocol based on Arizona's service rules and reinforced by modern court expectations, including digital contact channels and investigative follow-through.
What Arizona Courts Mean by "Due Diligence"
Due diligence is more than knocking a few times at one address. It is a comprehensive effort to locate the defendant through all reasonably available methods:
Courts want evidence that genuine, sustained efforts were made to achieve personal service before considering alternatives.
Core Elements of Due Diligence in Arizona
Multiple, Varied Service Attempts
- Numerous attempts, not just one or two
- Attempts at different times of day
- Attempts on different days (including weekends when appropriate)
- Repeated visits to confirmed or likely addresses
A pattern of attempts demonstrates persistence and credibility.
Attempts at All Reasonable Locations
- Primary residence
- Previous known residences
- Workplace or former workplace
- Locations identified through skip trace results
- Addresses provided by friends, family, employers, or associations
A single location is never enough when other addresses are available.
Actively Investigating Leads
- Speaking with neighbors (when lawful)
- Contacting known relatives or associates
- Checking public listings and online directories
- Reviewing obituaries
- Contacting correctional systems at local, state, and federal level
Due diligence means gathering and verifying information, not just making attempts.
Exploring Digital and Online Channels
- Sending messages to known email addresses
- Reviewing accessible social media profiles
- Attempting contact through known online accounts
Courts see digital channels as part of a "reasonable effort" when the serving party already has access.
Address Verification
- Postal verification
- Utility or public record checks
- Skip-tracing databases
- Observing activity at the location (vehicles, lights, occupancy)
The goal is to demonstrate that the address is accurate—or that it is clearly no longer associated with the defendant.
Detailed Recordkeeping
- Dates and times of every attempt
- Addresses and locations visited
- Observations at each location
- Contacts made with neighbors or associates
- Digital outreach efforts
- Data sources checked
- All investigative steps taken
A well-documented diligence record is the foundation of any motion for alternative service.
Fast Serve AZ prepares detailed, court-ready diligence reports.
What Does Not Count as Due Diligence?
Arizona courts routinely reject diligence claims when efforts are:
Courts want persistent, good-faith efforts—not superficial attempts.
When Due Diligence Supports Alternative Service
If you have made thorough, documented efforts using all reasonable channels and still cannot personally serve the defendant, you may file a motion requesting an alternative method of service.
Alternative service is considered only when:
- Personal service is impracticable
- Multiple locations and leads have been exhausted
- Digital communication attempts (if available) have been made
- All efforts are clearly documented
Your motion must include a full diligence record—every attempt, every lead pursued, every contact made.
Fast Serve AZ provides comprehensive affidavits and diligence summaries designed to support these motions.
Fast Serve AZ's Due Diligence Framework
Our protocol is built to meet Arizona's modern expectations:
Our diligence work is designed to withstand judicial scrutiny and support motions for alternative or substitute service.