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

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Apostille / Legalization

Hague Apostille and
Embassy Document Authentication Services
FREE Document Review

$175 /from

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Skip-Tracing

Easy Address Location for Service of Legal Documents
Big Data + Human Approach
No Hit, No Fee

$65 /from

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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.

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

William

The speed of your service was… excellent the fastest service that I have ever had for an Apostille

The speed of your service was exceptional. We did have a little disagreement over the title of my documents, as stated on the notarization, but your company took care of the problem and the representatives that handled it were very courteous and respectful and prompt..

June 17, 2024

Ilana

This company is amazing

This company is amazing. It took them 1 week to order a new birth certificate, and have it Apostilled and sent overseas! this is after I tried to have it done with another company for 4 months and they kept losing my documents. One Source are professional, very quick and very competent. I highly recommend them

June 4, 2024

Micheal

I was looking for a process server…

I was looking for a process server online, and was unsure of certain companies I came across. The rep was patient and allowed me to ask whatever questions I needed to make me feel comfortable. I also loved the speedy delivery of service,even though the person I served was out of state. Definitely will use again.

April 1, 2024

Verified Review

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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!

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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?

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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.