Pet Sitter Job in Waterloo, Ontario

Good Afternoon, I am wondering if you could help me or provide some direction. My friend had to move out of his apartment, on Tuesday. His apartment was a hoarding disaster and his cat had only lived in his place since his adoption 7-8 years ago. We believe at the time of adoption he was approx. 2 years old. I was hoping to take him for a couple months, while my friend found a new place to live. However, he has not been de-clawed, but is okay with his nails being trimmed. He also has not been fixed and shots are not up to date. In the old apartment, he was given two litter boxes, one in a back bathroom and another in the living room. I would not allow two litters as I have a small apartment and the only place for a litter box is under my kitchen table. With that being said, he peed/sprayed in the old apartment often, when his owner (my friend) was not home. Since being at my apartment, he has now peed/sprayed two times, which I am not happy about. I am wondering if you offer or can suggest any other boarding/fostering or options for approx. 2 to 2 ½ months? Also, can you recommend any options for updating his shots? My friend is in a bit of a financial situation, where funds are extremely limited. Thank you in advance  Jennifer M.