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Your Path to German, Austrian and Other European Citizenships

At Cosmo Advisors, we simplify the journey to obtaining your European Citizenship. With our fluent German-speaking team, carefully led by our experienced Swiss-Israeli legal representative, we are proud to offer you an Austrian and German citizenship application service that will care of every step so you don’t have to.

Our services ensure a thorough examination of your legal eligibility for European citizenship, together with efficient processing of all necessary applications and a seamless client experience for Holocaust descendants. As a new service offered in partnership with Gellis Obrasky Law FirmCosmo Advisors offers a stress-free, all-in-one service that will allow you to secure your future in Europe. We offer all legal services necessary in obtaining citizenship, including access to experienced lawyers, certified notaries, and translation services. Choose Cosmo Advisors and take the confident path to European citizenship​.

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Why us?

We are here for YOU


We have a proven record of successfully attaining European citizenship for our clients. Our team has dealt with hundreds of applications and possesses extensive experience working together with the relevant authorities.


We speak all the required languages. At our office, you'll find our professional, German-speaking team, guided by a Swiss-Israeli licensed lawyer and notary, who is an expert in European law.

Efficient Service

At Cosmo Advisors, we guarantee that our clients receive the best, most efficient service available, together with a premium-quality client experience - from start to finish.

Who are we?


Jossy Gellis

Meet Jossy Gellis, attorney-at-law and notary. He serves as our Co-Founder and Head of Legal, and is fluent in German, English, Hebrew, French, and Spanish. Holding bar admissions in Switzerland and Israel, he excels as a cross-border legal expert. With nearly two decades of advisory experience, his expertise spans Germany, Austria, Switzerland, and the EU. As a co-founder of Gellis Obrasky Law Firm, he brings substantial knowledge to European citizenship applications and affiliated matters. Jossy's proficiency in European and Israeli law, coupled with his language skills and network, shapes our foundation and consulting services.

Jossy Gellis
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Liora Abergel

Liora Abergel is the CEO and Co-Founder of our company. With a BA and MA in Political Science from Reichman University, she has a strong academic foundation. Her versatile background includes work at UBS and a Healthtech Startup, showcasing her entrepreneurial skills. Fluent in German, English, French, Hebrew, and Italian, Liora's global perspective drives our company's innovation and growth.

Liora Abergel

Joshua Weill

Joshua Weill was born and raised in Basel, Switzerland. He is fluent in German, English, Hebrew. He holds a degree in psychology and possesses extensive experience collaborating with German and Austrian authorities. His professional career has enabled him to process citizenship applications and navigate complex administrative procedures. Joshua combines his psychological expertise with a deep understanding of bureaucratic processes to find efficient solutions and support individuals on their path to citizenship.

Joshua Weill
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Cosmo Advisors - A service offered in partnership with Gellis Obrasky Law Firm

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