I'm also thinking it is an APBT. Maybe they know the discrimination against the breed, so they left out the pit part, or it was an honest typo on their part.
No matter what kind of dog it is, you should meet it before renting out to it. A 4ft fence would be fine for a bull terrier, but may not be adequate for a pittie. They can have quite the vertical jump.......... .although if trained well won't even attempt to get out.
But I would check with your insurance company too. Some have policies on all bully breeds, pit or not.