I have (3) ongoing roadway construction projects 2017-present in the same city(ch.90 money) in the state of MA that have been late on many pay estimate payments. I have received requests from the consultant engineer to revise some of the pay estimates, ~ 1-month or more after submitting, which caused further delays. I would like to know the best way to submit for this payment and weather a warning /notification letter be submitted first. Our company is from this City and we would like to do this in friendly way. Regards, Jaime, Partner/PM