I had never used this service before, I had to send a POA to an attorney in Costa Rica. The attorney recommended One Source Process and I'm sure glad they did. They kept in contact with me, patiently... See more
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
I did federal authentication and embassy legalization for a bunch of documents with One Source Process. Everything went smooth and I am happy with the results. In the beginning I was a bit nervous to... See more
I needed my background check (Nov)apostillized before January. I was nervous with the government shutdown and if that would impact the process. After researching; I’m happy I decided to use One Sourc... See more
Company replied
Second time I used One Source Process to serve papers in the Washington D.C. area. They accommodated my special needs in attaching original documents to documents sent via PDF. Returned the Circuit... See more
Company details
- #19 of 88 best companies in Legal Services
- #10 of 17 best companies in Notary Public
- #1 of 3 best companies in Process Server
Written by the company
One Source Process stands at the forefront of the legal services sector, offering comprehensive process serving and document processing solutions. Our commitment to expertise, efficiency, and personalized client service sets us apart. Based strategically in Washington, DC, and supported by satellite offices across the country, we cater to clients in all 50 states and territories. Our wide array of services includes process serving, document apostille and legalization, skip tracing, mobile notary services, court filing, document retrieval, and subpoena preparation, ensuring a one-stop solution for diverse legal needs.
Contact info
1133 13th Street Northwest suite C4, 20005, Washington, United States
- 8006685448
- info@onesourceprocess.com
- onesourceprocess.com
4.8
Excellent
861 reviews
Replied to 100% of negative reviews
Typically replies within 1 week
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Easy to work with and great customer experience
Easy to work with, process was super clear, and vendor did exactly as promised. Highly recommend!
February 6, 2026
Legit, professional, responsive & fast!
I was nervous about hiring a service to take care of my federal apostille... what if they scammed me? But, One Source is the real deal!
They stayed in touch with me and always responded promptly to my emails. They were willing to provide updates that were very reassuring. And, most importantly, my apostilled document reached me in Costa Rica in record time!
February 6, 2026
Would like to recommend One Source…
Would like to recommend One Source Process. They provided efficient handling of my document. They supplied adequate explanations and instructions for the process. No disappointments.
February 6, 2026
Just done
The step by step routing was guided by step one. Residing in Spain I was worried a bit that I would not get in time but step one made it possible. No doubt actions speaks louder than words. Keep it up.
February 6, 2026
Excellent Service
Easy process to set up. Communication was excellent. Pricing was really fair.
February 6, 2026
Great experience and the best communication.
I worked with three different people and they all communicated well and were always able to answer my questions and provide timelines. We’re very appreciative of their level of customer service and will definitely suggest them to our friends and family.
February 5, 2026
Quick service
January 28, 2026
Fed apostille was smooth. Tracking number not sent after shipping
The federal apostille was mostly smooth and fast, except I was not sent the tracking number after my document shipped.
January 27, 2026
It was fast and smooth
It was fast and smooth. My only complaints are that they are not very responsive for how much they charge. I paid around $600 for two documents to be apostilled and expedited and they weren't as responsive as I'd like but, they got sh*t done.
January 27, 2026
Excellent and Reliable Apostille Service
I had a very positive experience with One Source Process. The overall service they provided for my apostille was efficient, professional, and well organized. Communication was clear throughout the process, and everything was handled smoothly from start to finish. I truly appreciated their reliability and would not hesitate to use their services again in the future.
February 2, 2026
Reliable and Legitimate Apostile Service
Professional, courteous and prompt email communications. Screened documents for potential refusal by State Dept to apostile. Promised 2-3 weeks turn around. Received mine door to door exactly 2 weeks. Very reliable and legitimate service, highly recommend.
January 30, 2026
Quick and Professional
One Source Process got me the necessary documents and translations in short amount of time with no errors. Their response time was prompt and highly professional. I would absolutely recommend their services to anyone.
January 27, 2026
ALWAYS STRIVE TO BE BETTER
Since this is a one or two time exercise for me, I can't be totally objective, BUT at the three week mark with no communication on the federal document, I spent over and hour and a half tracking down readily available information, that should have been available to me of the process moving forward. I did appreciate the interim communication giving me update on the first document. My suggestion would be that your company engage in a weekly update as an assurance for us customers.
Otherwise, I like doing business with you!
January 27, 2026
Very quick turnaround with the…
Very quick turnaround with the documents and great communication!
January 12, 2026
Sebastian
I recommend using One Source Process—my apostille process was completed quickly and according to guidelines after I received the documents. The documents arrived correctly prepared and ready to be submitted to the authorities.
December 2, 2025
Unprompted review
Fast efficient service
Fast efficient service. Great communication. Under 3 weeks we had our documents authenticated. Very pleased.
January 21, 2026
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