I've worked with a senior lawyer on a previous project. Now he's asking for 5% and $1k per month retainer. We need some facilitation in negotiating with the investor, shareholder agreement, founder agreement, site terms, site privacy policy, single contract for all suppliers. He's also offered to give off the cuff thoughts on matters as they arise. We don't need per-supplier or per-client contracts.

He's indicated he's open to a lower %. What's fair? What do other startups give and what do they get in return?