Find out what litter & food its using now, it will be happier & less likely to refuse to use strange litter & mess on your floors/not eat.
Try & get the people who have it now to let you have some ing its been sleeping with, blanket, item of old clothing, soft toy - it will smell familiar so it won't be so afraid in a big scary new place without its mum - one of our cats came with a cat blanket & beanie toy cat,(her kitten) both of which she still frets about if she can't find them & we've had her 3 years :)
Heat pad of hot water bottle can be useful for them to snuggle up to if you are not planning on having your bed taken over - if you don't mind it sleeping with you - word of advice - don't let it snuggle into your neck - its lovely with a tiny kitten - its a nightmare on going battle with a huge tomcat, who doesn't understand he's strangling you - voice of experience - lol
Program anti flea jab when its old enough - saves a fortune in flea treatment & best still saves the poor might the distress of flea infestation.
Make sure your food bowls are low sided wide ones - there's a good white cat head shaped whiskers bowl available if you can find one - we got a freebie as a promotional with a box of cat food & it hadn't occurred to me before, but it saved us a lot of wasted food & made for happy cats - a saucer will do - they don't like their whiskers touching the sides of the bowl when they eat.
Get it Microchipped, that way it can always be traced back to you if lost.
& a bottle of citronella aromatherapy oil, cats hate the smell of it & its a repellant if you wipe/mix it up,with water & spray onto furniture to stop scratching - it also helps stop them soiling in places again
& if there are any accidents, don't clean up with your usual household cleaners, they contain ammonia with cats smell as cat wee & it attracts them back to mark territory - use vinegar & lemon with a bit of washing liquid, cleans just as well - spray with citronella as an extra repellant
& cats can be trained to stay off tables & work tops, managed it with all the cars I've owned over the years, my DPs cats too - just a firm no, & if you have a stubborn feisty one - a water pistol works wonders