I'm not sure, but I think Republicans are still allowed to sell items they purchased at a profit some years later.
The cumulative number of tea bags is looking pretty bad. Of course it's still early in the process. The FBI just raided Cunningham's home and office, and the Grand Jury looking into his affairs hasn't yet issued indictments. But it's perfectly reasonable for onlookers to say that a lot of suspicious smoke is in the air, with the strong possibility of fire underneath it all.
Remember, corrupt officials generally try to cover their tracks. Cunningham and his attorneys will argue that none of these financial deals involved a quid pro quo, and that it was all reasonable and explainable. Whereas a more objective observer will look at the same constellation of activities and smell the strong whiff of bribery and influence peddling.
Maybe Cunningham really is clean. Maybe there will be no indictments. Maybe he'll stay in office and win re-election.
Maybe. But don't put a lot of money on it.