I wanted to let you know to not think too much about them, keep your goal here as the main focus. This is a great opportunity for you and your family that is the best move for you. This is very different them terminating care due to parent or child issues.

Let them know why you are closing they should, even just a little, be happy for you. Keep in mind that they need 2 more months of care, and you can provide one month of it, and you are able to offer up a solution for that other month (whether or not they choose it). Long term this isn't going to effect them too much.

I don't think there will be an issue here. It might surprise them, but in all I think that you have a great reason to close and have a great back up plan for them.

Feel confident in your decision. Do not over apologize, acknowledge that it isn't the best timing for them but then move on to the solution you have to offer and how this move will benefit you long term.