Start with your own veterinarian
Emergency cover is arranged in a calm week, not from an airport departure lounge. Begin with the veterinarian who already knows your animals: ask how their out-of-hours emergencies work, whether emergencies route to a partner clinic under a shared arrangement, and what they want your sitter to do first in the emergencies your animals are actually prone to — a horse showing colic signs, a goat straining, a hen found collapsed. Then identify the backup: the nearest clinic or practice that takes after-hours farm calls, saved into the sitter's phone alongside your own vet's number, because the moment to discover a coverage gap is not midnight with a horse down and a sitter reading a leaflet.
Money and permission, settled in advance
More emergency treatment stalls over authorization than over medicine. Leave a signed, dated letter that names your sitter and authorizes them to consent to emergency assessment and stabilizing treatment for your named animals while you are away — and lodge a payment method with the clinic beforehand, with a frank conversation about how far treatment should go before you must be reached. Vets act fastest inside clear permissions. If the clinic keeps an authorization form of its own, sign that too rather than assuming your letter covers their process. The letter should also say who can make the hardest call if you are unreachable mid-flight, and that person's number belongs on the same page. One copy stays with the sitter, one with the clinic, and one photographed in your own phone.
The sitter's one-page-per-animal brief
For each animal, write the page you would want handed to you: species, breed, age, identifying marks, normal appetite and behavior, current feed and amounts, ongoing conditions described plainly, and the quirks that matter — the gelding who must be caught with feed and never chased, the mare who will not load for a stranger. Add who can haul a horse to the clinic if transport is needed, and where the trailer keys live. Baselines are the gold here: a sitter who knows this horse normally eats up in twenty minutes and always leaves the stalks can spot 'not himself' hours before anyone sees an emergency, and early is the whole point of cover. Photograph each animal's page into your phone as well, so the brief survives a lost folder.
Thresholds and check-ins while you are gone
Agree the escalation ladder before you leave: what the sitter handles and reports at the evening check-in, what earns an immediate call to you, and what means veterinarian first and you called from the yard. Put it in writing, set a daily check-in time that survives your time zone, and name a local second pair of hands — a knowledgeable neighbor — for problems that need two people before the vet can arrive. All of it travels best as one tidy handover: a KinsLe Care Pass gives your sitter temporary access to exactly these routines, contacts and key details for the days you are away, and nothing they no longer need once you are home.