I for one would not want to associate myself with Russian wealth regardless of how squeaky clean Yuri or his firm might potentially be. On that latter point, I would try to conduct extensive due diligence on them and their investors. It strikes me, however, that there are too many potential skeletons in the closet when it comes to Russian wealth that even the best of due diligence may not reveal. I would just want to stay away from any possible connections with ill-gotten wealth of the sort that is widely known to have occurred in post-Soviet Russia. I am not willing to sacrifice my principles or reputation for the sake of business -- nor would I want to directly or indirectly benefit shady characters or associate myself with potential ill-gotten wealth that could be very difficult to detect when entering into such a relationship.