Or let you MIL figure out how to coordinate seeing her own son. Why is this your problem? I personally would stay out of it as much as possible, if you can.
M: 43 H: 39 D: 14 Married 15 Together 16 BD: 6/2014 S: 8/2014 OW revealed 10/2014 Instigated dissolution 12/2014, in progress So over it!