@Happypets the unitary incontinence would be the main worry for me and how this is manifest/ how much of an impact it will have on the stay.
Did any previous sitters mention anything in their reviews ? Maybe it’s a new condition that’s recently developed. Definitely something to ask the owner for more information about.
If it is going to completely change the sit you can ask them to find alternative sitter as they did not disclose the health condition of the dogs . Which is is breach of the T&Cs
“5.2. The following applies only to Pet Parents. You will:
5.2.1 be responsible for vaccinating your own pet(s) and notify your Sitter should your pet(s) have any illnesses or ailments;”
If you decide not to do the sit for these valid reasons, the owners need to cancel you as sitters on the platform so that you can look for a replacement sit in the area .
If you do decide to go ahead with this sit, please make sure that you have discussed with the owners and have a agreement in writing about who will be responsible for paying any emergency vet treatment if it becomes necessary during the trip . Something that should always be discussed but especially important for elderly pets who already have health issues.
https://forum.trustedhousesitters.com/t/sitter-has-to-pay-veterinary-expenses-up-front
Trust your instincts on this one .