I think the real issue is that his lawyers are conducting the search for these docs, how can they be viewed as unbiased investigatory team? It raises the issue that are their other docs his lawyers have not disclosed and possibly destroyed them as evidence.
Isn't it the FBI's job to handle the search? I mean when does a law enforcement group trust a defense attorney to handle the search? With Trump, they descended upon his house with a whole tactical team of armed men and would not even allow his lawyers to observe the search.