We will be here for 3 days as first timers. We will be landing at Schiphol and staying near Sloterdijk station. Thinking we need transport each day from Sloterdijk to central Amsterdam. Can I get a multi day pass at the airport that will take me to our hotel and then use the rest of the time (somewhere I was reading that the only train from the airport was the Sprinter and it wasn't included with the day passes). Thanks.

Here it is

https://www.discoverholland.com/amsterdam-travel-ticket

You can order online (€28 per person for 3 days), and you'll receive a voucher by email.
"With this voucher you can collect your 1-, 2- or 3-day Amsterdam Travel Ticket at one of the Public Transport ticket machines at Schiphol Airport or Amsterdam Central IJ-zijde or at the NS Train Services & tickets shop at (...) Schiphol"
As Sloterdijk is on one of the Schiphol trainlines, you can use your pass for train travel between Sloterdijk and Centraal Station. For trams, Sloterdijk is a bit awkward and not well served, so train is your fastest option into Amsterdam centre, and with the pass, it's included.

Can I use this Amsterdam travel ticket E28 to also take the train to Zandvoort and Haarlem??

Don't think so, but you can buy a point to point return Sloterdijk - Haarlem or Zandvoort: it's not a long journey, nor is it expensive.

Thanks so much for the info!!