Tough one ~ I honestly would have to pas if it were me ~ my cut off for extended hours is 10 hours cause that's my threshold ~ working longer than that I start to burn out

Also I normally do not hold a spot specially for THAT long ~ that is a lot of income to 'forgo' for someone specially if there is demand in your area and you could fill that spot with someone else.

If it is someone you really want to enroll and can afford the loss in income than find a holding fee that is 'fair' to both of you ... you could meet in middle with them paying 50% of your fee and than even do something like allow them to start sending the little one 2-3 hours a day for September and 3-4 hours for October or something and working up to full time for November so the wee one should be good and adjusted by the time they are expected to be there 11 hours a day?