FYI: contracts can specify a lot of different payment terms. The term that you apparently desire to be in contracts you sign is against the interests of your c

FYI: contracts can specify a lot of different payment terms. The term that you apparently desire to be in contracts you sign is against the interests of your counterparty. Most of them will have asked a lawyer how to write their contract. Their lawyers will often draft that contract to protect their client's interests. You will find that lawyers are rather good at doing this and are about as likely to be out-thought by a programmer's parsing of the English language as you are to be out-Fizzbuzzed by a randomly chosen attorney.