Dear Mr. Sedlacek,
Thank you for posting on History Hub!
We suggest you contact the Washington DC Family History Center. For contact information, please visit http://wdcfhc.org/wordpress/contact-us/. The Center has individuals that are very knowledgeable in genealogy and family history research around the world. They even have a special interest group on Eastern European records/research. They can provide tips, information on records, help with translation/transcription, and can connect you with researchers for hire.
We hope this information is helpful to your research!