Cheeky Old Puss Cat

This cat lives two doors away from me but is insisting on trying to move in with me(and I'm allergic to cats)
She sits on the patio chairs and table sunbathing,if a doors open she tries to get in and even the conservatory windows have to be kept half shut as we found her half way in( or out) a few days ago.
Love animals but can't stand the sneezing and streaming eyes so keeping her at arms length...:)