Like everyone has said, that depends on City and County zoning and regulations for the area. If you are working with a good Real Estate Consultant that knows they area, they will either have the answer for you or know where to direct you to look.
Since, in So Cal, custom dictates that the Buyer does not have to be represented by their own agent, it would be the prudent thing to hire someone who is highly knowledgable about the area you want to purchase in and let the seller pay their fees.
Shel-lee Davis BRE #01817412
Real Estate Consultant
International Real Estate Specialist - IRESÂ®
Senior Real Estate Specialist - SRESÂ®
Certified Home Seller Advisor - CHSAÂ®
Certified Home Buyer Advisor - CHBAÂ®
Member - National Association of Certified Expert Advisors - NAEA
Certified Distressed Property Expert - CDPEÂ®
RE/MAX Estate Properties