Brake pedal falling

If it is down just enough to barely turn on the brake lamp switch, you probably just need to adjust the switch. That is why it has a slot in the bolt hole. In NJ, you should flush thru new brake fluid every 4 yrs or so (unless using silicone). Every used car I bought had rusty junk come out when I flushed the system, so guess they didn't know that, or care.