can an llc business be sued in a county it is not in or does business in?

Yes.  The United States Constitutuion requires that a defendant, whether it be an individual, corporation, partnership, llc, or other legal entity, must have sufficient contacts with a STATE in which it is being sued for that state to exercise jurisdicition over it.   However, assuming the llc has sufficient contacts with that state, there are no constitional requirements about which COUNTY it has to be sued in.  Normally, requirements for proper venue are set forth in the civil procedure statutes of each state, and a plaintiff may normally sue in the County in which he/she/it resides and/or where the event at issue (whether it be a transaction, some sort of accident, or something else) occurred.