We are very pleased with the work Petra Korn performed for our Retention Certificate (Beibehaltungsgenehmigung) application. It started with a profound expert opinion on how to judge our specific case, she was very knowledgeable and managed to clearly explain everything to engineers that are not familiar with immigration law. Petra Korn provided us with detailed counseling and assistance. As a result, the petitions were approved very quickly and enabled us to proceed with our naturalization application after only 1 month. We are glad that we were referred to Petra Korn and will continue to use her service for the naturalization process.