1) We use PhRETS library, and adodb library.
2) Currently, we have separate cron jobs set up for each mls. Each job downloads all the active properties from a particular MLS, then deletes all properties for that mls from our active database and inserts all active properties. This processes takes too long. We need to modify the code so it will insert/delete/update incrementally each night.
3) We can demo how it currently works, and give you a copy of the code.
4) we will pay for each mls separately.
Please do not bid if you have no experience with MLS feeds!