International Service
Generally, if a person is trying to serve the other party internationally, the rules of service may depend on where the other party is living and various international agreements and applicable U.S. laws. For example, the Hague Convention is one international agreement among certain foreign countries that outlines how service of process is properly completed. I cannot say whether this convention applies to your situation, but you may be able to ask a lawyer about what rules of service may apply to your case. This site has some information about international service: https://travel.state.gov/content/travel/en/legal-considerations/judicial… We are not affiliated with that site in any way, but I provide it for your information.
Additionally, some countries may have certain restrictions to how the country allows a person to be served with international court documents. This may be another thing you may want to discuss with an attorney. This site also has some information about what methods of service each country allows: http://travel.state.gov/content/travel/english/legal-considerations/judi… We are not affiliated with that site but I provide it for your information. We have listings for lawyers, free and paid, in STATE: [LINK]