I am helping a friend trace his roots.
Is the name FLEISHMAN German

Yes.

It means flesh + man, probably butcher.

or could this family come >from another country?

Yes. [Your "or" is wrong.]

.. because it is also Yiddisch, and the Ashkenaziem used Yiddish/German
familynames for civil use all over Europe, and even far into Asia.
--
Evertjan Hannivoort.
The Netherlands.
(Please change the x'es to dots in my emailaddress)