Time frame has a lot to do with how soon parents are looking. If care is to start 2-3 months down the road or more then you know the parents are still in the "shopping" phase and it could be a month before they have completed all of the interviews they intend to have and start narrowing down their choices. These are the same people who are appalled and angry when they do contact you 2 months later only to find out you gave the space to another family a couple weeks after they visited. I have in the past sent emails to families saying the space is now filled but don't always bother. Figure it serves them right for passing me up instead of jumping on a good thing,lol.