This decision holds that a non-competition clause in a contract for the sale of a part of an LLC member’s interest in the LLC is not per se illegal but should, instead, be judged by the reasonableness standard. A sale of a partial business interest differs drastically from the sale of an entire business interest. Following a partial sale, the seller remains an owner of the company and may still exercise some degree of control over its operations. Given this context, a non-competition provision arising from a partial sale cannot be deemed inherently anticompetitive and invalidated per se under section 16600.