Sorry to hear about your grandfather.

About pet sitters I have found it is hard to find one with short notice. I recommend looking into local kennels or sitters for the future right away. Good pet sitters will want to meet with the pet beforehand and establish familiarity with them. I live in an area where there are plenty of pet sitters, most of them bonded and insured, but it is still hard to find one that is available.

Check out kennels and ask your vet for suggestions. Also ask other dog owners around you who they use.

A pet sitter like once a month or doggie day care once a month may not be too expensive and would establish a relationship that would help ease anxiety (for you and Kia) when you go away for an extended time.