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Desert City Services

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Who Can Legally Serve Process in Illinois?

April 27, 2026
/
Lori

Who Can Legally Serve Process in Illinois?

Many people assume that only the sheriff can serve legal documents in Illinois. While the sheriff remains an important part of the legal system, Illinois law authorizes several individuals to serve process depending on the circumstances of the case. Understanding who may legally serve court documents can help attorneys, businesses, landlords, and private individuals choose the most appropriate method of service.

Under Illinois law, civil process may generally be served by the county sheriff, licensed private detectives, properly registered employees working under licensed private detective agencies, and other individuals authorized by law or appointed by the court when appropriate. Recent changes to Illinois law expanded the authority of licensed private detective agencies, allowing them to provide statewide process service without the need for case-specific court appointments in many situations.

Choosing a qualified and experienced process server is about more than simply delivering paperwork. Proper service requires knowledge of Illinois law, attention to detail, accurate documentation, and professional judgment. An experienced process server may identify issues with court documents, recognize incorrect addresses before unnecessary attempts are made, or recommend skip tracing when a defendant has moved. These proactive steps can help avoid unnecessary delays and additional costs.

At Uthe Investigations & Process Service, we believe that experience protects your case. As a licensed Illinois Private Detective Agency, we provide professional process service throughout Illinois while helping attorneys, businesses, landlords, and private individuals complete valid service in accordance with Illinois law. Whether your assignment involves routine service, rush service, or an evasive defendant, choosing the right process server can make a significant difference in the success of your case.

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Uthe Investigations Prices

  • Standard Service $90

    Ten Plus Service Days. Up to Four Attempts at one address only, we do not split attempts on multiple addresses.
    Second Named Defendant at the same address is half price, providing they can be substitute served.
    All in person services are completely separate services and full price each.

  • In Person Only Service $125

    Certain Place, Certain Time, Scheduled Meet with Landlord or Defendant.

  • Rush Service $170

    Service within 24 to 48 Hours. Three Attempts.

  • Expedited Service $135

    For Service between Three to ten days. Three Attempts.

  • Same Day Service $250

    One Attempt.

  • Digital Service $125

    It includes affidavit of service, proof of service and mailing.

  • Surveillance/Cohabitation Cases $150

    Rate Per Hour.
    Retainer Required.

  • Skip Trace $100
  • Social Media Deep Dive $350
  • Uthe Investigations PLLC
    2314 RT 59 #204
    Plainfield, IL 60586
  • IL (815) 577-9988
  • Info@UtheInvestigations.com
  • Serving 7 Days A Week
    Monday - Sunday

    Office Hours:
    Monday - Thursday
    9am - 4pm
    Friday 9am - 12pm
    Closed Weekends & Holidays

  • IL PI Agency License # 117-001911
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  • Desert City Services LLC
    9221 E Baseline Rd #109-242
    Mesa, AZ 85209
  • (602) 688-2552
  • Info@DesertCityServices.com
  • Serving 7 Days A Week
    Monday - Sunday

    Office Hours:
    Monday - Thursday
    9am - 3pm
    Friday 9am - 12pm
    Closed Weekends & Holidays
  • AZ PI License # 1714937
    Process Server License # MC-8934
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  • Home
  • Services
    • Illinois Background Investigations & Criminal Background Check Services | Uthe Investigations & Process Service
    • Illinois Tax Sale Support Services | Uthe Investigations
    • Digital Social Media Investigations | Uthe Investigations
    • Illinois Asset Search | Asset Investigations | Uthe Investigations & Process Service
    • Illinois Landlord Services | Investigations, Evictions & Process Service
    • Insurance Subrogation Services in Illinois | Uthe Investigations
    • Education & Employment Verification Service | Uthe Investigations
    • Attorney Services Illinois | Litigation Support | Uthe Investigations & Process Service
    • Illinois Cohabitation Investigations | Uthe Investigations
    • Private Investigations Illinois | Uthe Investigations
    • Nationwide Process Service | Uthe Investigations
    • Illinois Skip Trace Services | Uthe Investigations
    • Mobile Home Park Landlord Support | Uthe Investigations
  • About Us
  • Articles
  • Prices
  • Home
  • Services
    • Illinois Background Investigations & Criminal Background Check Services | Uthe Investigations & Process Service
    • Illinois Tax Sale Support Services | Uthe Investigations
    • Digital Social Media Investigations | Uthe Investigations
    • Illinois Asset Search | Asset Investigations | Uthe Investigations & Process Service
    • Illinois Landlord Services | Investigations, Evictions & Process Service
    • Insurance Subrogation Services in Illinois | Uthe Investigations
    • Education & Employment Verification Service | Uthe Investigations
    • Attorney Services Illinois | Litigation Support | Uthe Investigations & Process Service
    • Illinois Cohabitation Investigations | Uthe Investigations
    • Private Investigations Illinois | Uthe Investigations
    • Nationwide Process Service | Uthe Investigations
    • Illinois Skip Trace Services | Uthe Investigations
    • Mobile Home Park Landlord Support | Uthe Investigations
  • About Us
  • Articles
  • Prices

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Alias Buster™

Alias Buster™ is a proprietary process service and skip tracing solution offered exclusively by Uthe Investigations & Process Service LLC.