When you tell us always to provide an estimate, what if they refuse to sign your estimate, saying legal will only allow them to work off their agreement? How do we respond to cover ourselves?
The norm is for larger clients and ad agencies NOT to sign our estimates/bids/contracts as their legal department controls the company decisions. We cover ourselves by carefully reading through their SOW (statement of work) agreement, not signing any terms contradicting our arranged policies. Our estimates still protect us if it comes down to a legal matter, so use the protection terms wisely as our backup.