There was a similar post last week with provider noticing ad on Kijiji from family who were looking into other options at the same time as in the talks with provider....very frustrating. Probably best to fill with new family if u can. However if this mom does end up staying with you, would it be better for you to have child part time for the first half of the year (you'd charge 150 per week the whole year right if I'm understanding it correctly) incase something changes in the second half of the year (like she leaves then). Then at least u wouldn't have had him fulltime for the 150. I think your offer to her was fair and kind.