Maybe. It was 1936 that he renounced his citizenship, so that may or may not be considered. However, my great-grandmother did own an apartment building with business spaces below it in East Berlin which was confiscated by the Nazis and my grandfather and father spent about a decade trying to get it back after the Berlin Wall fell (they finally did but had to sell it for a very low price because there were price caps due to the poverty in East Berlin) so that might be considered?