missed rent payments

[Steve Boianelli]

Need some advice on my next step... One of my tenants missed his scheduled rent payment. Am I correct that I need to serve him a "Pay or Quit" notice? If so, does anyone have a letter I could use? Or is there specific language I must have in my letter when I serve the tenant with the letter in the event I write the letter myself? Is there a certain amount of time I must allow him to pay? 

Thanks!