In a bit of a pickle 😢

So I live with 2roommates and recently we all have to move out due to the landlord losing the house , one of them has left but she has left behind her cat 😓😓😓 like i feel bad i cant take it with me nor the other girl now what do I do?? I dont want him to be put down or anything i been trying to reach the owner with no response . Do i leave him at a shelter?