Order now
Legal Process Services

Legal Process Services

Providing Document Authentication, Legal Process Services, And Notaries In All 50 States
Service of Process
  • Nationwide in all 50 States
  • GPS Tracked Attempts
  • Special Rates for Attorneys and Law Firms
$85 /from
Learn More
Apostille / Legalization
  • Hague Apostille and
  • Embassy Document Authentication Services
  • FREE Document Review
$175 /from
Calculate Cost
  • Easy Address Location for Service of Legal Documents
  • Big Data + Human Approach
  • No Hit, No Fee
$65 /from
See Details

Nationwide Legal & Document Services

A leader in the legal services industry, One Source Process is a full service process serving and document processing company that provides an experienced, efficient, and personal service to our clients. Strategically headquartered in Washington, DC, with satellite locations nationwide, we serve all 50 states and territories, providing a variety of services such as service of process, document apostille & legalization, skip-tracing, traveling notary, court filing, document retrieval, and subpoena preparation.

Document Apostille Services

With our vast local and national network, our various legal services treat each case with the utmost priority, assuring that the job is done quickly and correctly the first time.

Nationwide Legal & Document Services
Any Document Any Time
More than 2,000 experienced process servers, notaries, and couriers available 24/7 in all 50 states.
Save Time
Use our online submission form to get started. Select a service, upload your documents, and submit.
Know Your Cost Upfront
One Source Process openly advertises our fees, offering the most competitive rates in the industry.

Testimonials from real clients

Keven Smith
I highly recommend One Source Process for all of your document legalization needs. I will recommend them to my colleagues, friends, and incoming employees for overseas employment. They tackled two complex problems for me with ease. They communicated well and addressed all my concerns in a prompt manner through email and phone calls. If you ever need document legalization services, call no one else, I won’t.
August 10, 2022
Holly Webb
We have used a few different process servers and no one has provided the level of customer service that One Source Process has. They are very reliable and they communicate every step of the way. Alex and Brandon have been a huge help and they always take their time to understand our needs. We look forward to working with One Source Process for a long time.
October 20, 2021
Juliann Meiners
I used this company for Chinese Visas and they were the best! If you need a visa, use One Source Process! I was worried when choosing a company to get visas through since we would have to send in our physical passports and all of the personal info you need to provide. They made everything smooth, easy, and always answered back to my emails within hours, if not minutes. With all of my questions and concerns, the constant communication really helped put me at ease. I can not recommend this company enough!
January 3, 2022

Save your time and money with One Source Process

Legal Process Services

One Source Process is the process service company that provides the most comprehensive, professional, and efficient legal document processing services in DC and all 50 states & territories. The professionals who work for our DC office are trained to handle common situations that arise when serving process in the DMV, such as the difficult process of gaining access to secured residential buildings or the proper contact when serving various government agencies.

Need a service after hours, on the weekend, or a holiday? Our emergency answering system and after-hours availability will have your service request handled by a Washington, DC process server the same day. Upon completion of service we will file the affidavit at any DC court free of charge.

Need a service after hours, on the weekend, or a holiday?

Please inquire with our office for any special requests such as our stake-out service for those avoiding service. Assisting attorney, corporate, and pro se clients alike! Speak with one of our process service company experts today!

Questions about service

Who is One Source Process?
How does skip-tracing work?
Do I need a process server?
How do I submit a request?

Ask us anything!

Our CEO Brandon Yoshimura and Director of Operations Danny Koo.

Ask us anything!

    CEO Brandon Yoshimura (left) and Director of Operations Danny Koo (right) outside of our office in Washington, DC.