I've been looking for a long time. No luck for me. I only found one a long time ago, not in the GTA, and it was only for a short time, because in the ad, the woman said she wanted to fulfill a fantasy of hers. She had set up a makeshift fake business office in an empty storefront. It was an empty space with a fake business name on the glass door facing the road. The inside was empty, except for an office desk, chair, and landline phone. She would leave the door unlocked a few minutes before your appointment time. You would have to walk in, lock the door, go to the room behind the desk, to another locked wooden door with a hole cut out. The hole was long vertically to accommodate men of various tallness. I think she only offered it for about a month. She probably got busted by LE.