Can I ask my lawyer for a copy of the settlement check the insurance company gave him before he took out his fees?

Yes.  You can ask your attorney to provide you any document in your file because your file is your property.  The attorney, however, may not currently possess the check or have a copy of the check. This is not intended to be legal advice, and is general in its nature. No attorney-client relationship exists or is formed by this information. Furthermore, this does not represent the views or opinions of LexisNexis or its affiliated companies.