Dear all,
In New York, I am lucky enough to know members of dozens of families who are descendants of Russians who had vast holdings before the revolution.
Not one of these people has ever filed a claim since 1991, for the following reasons which have been explained to me; there is no point in imperiling or impeding the progress of the development of a representative government in Russia by clogging up its offices with bitter demands for property or land restitution. Two, many of the most important palaces are already the property of the state, and are used as schools, hospitals, museums, and other organizations designed to benefit the Russian people.
The only thing which many people have said is that in the collections of the State Hermitage and Russian Museums, they hope to seee their families appropriately recognized as having formed the collections; nationalized possessions form an enormous part of the Russian Patrimony at this point, and it wouldn't hurt anyone to add a label which read "Formerly in the Bariyatinsky collections," or "Portrait of Elizaveta Shuvalova" rather than "portrait of a girl."
Baroness Helene de Luydinghausen, whose mother is the last of the Scherbatoff-Stroganovs, has made a career for herself raising funds for the Russian Museum's restoration of the Stroganov palace, and trying to get the Hermitage and State Russian museum to put the things now in their collections back into the Stroganov Palace (take a look at the Foundation's website, you can link on the first page...)
Most Russian noble descendants I know are content to finally be allowed to return to Russia to work, live, or even visit as guests--a privelege denied them for decades.
Nick