My husband is doing remodeling jobs for a property here in Missouri for this real estate agent. The contract stated that payments will be done everyweek and based on the bid's price. The person who hired him to do the job kept giving him excuses as to why he can't pay yet. It's been three weeks and the agent never ran out of excuses. The contract did not state about lien. But will I be able to file a mechanic's lien for this property? Until how long should I wait to give him a grace period to pay me?