HI Maria, as @Kelownagurl says THS sitter members prefer and we recommend always going through the site.
Reviews from owners are so important to a member’s success these can only be given for sits arranged on the site. Sitters also place high importance of having access to the 24/7 Veterinary Help Line while on their sit, the support of Membership Services and insurance cover and it is the same for owners. Having all of the benefits of the THS membership adds a level of trust, confidence and assurance.
As your message and situation underlines sitters are not always available and the surest way for an owner to get the sitter of their choice, one who is right for their pets and home, is to post on the site, Membership Services are available to help them with this at any time.
Advise the owner to contact Membership Services I’m sure we can offer a Welcome Back to the Community incentive and he will be best placed to find his sitter, there are so many ready to get back to their pet and housesitting lifestyles.