I would like to get further opinions:

In terms of travel expenses for a Schedule C--can a client claim the CONUS per diem amount for lodging for a trip if not a government employee? Or does it have to be actual expenses at a hotel or BnB? Or 0 if staying at a friend's home or reimbursed? I know that meal per diems can be included at the 50% rate. The client (in the performing arts), has heard differing opinions from different sources! 

Thanks in advance.