My idiot neighbors (rant and moral dilemma)

I live in a pet-friendly appt. complex I cannot say great thing about, BUT they take big dogs and you can have 2 fur kids per unit. However, there are breed restrictions, and they are usually enforced, not to mention pet rent and pet deposit. The neighbors (college age kids) just got a pit puppy (pits are not allowed, as well as puppies younger than 4 months). Their puppy can barely walk(4-5 weeks probably), no shots/deworming/flea meds whatsoever, and they see no problem taking this tiny boy outside and letting it sniff/walk over other dogs' poo and such. I've had some problems with these guys in the past because of loud parties, massive pot smoking outside, beer cans everywhere... Office or security take complaints anonymously and deal with them as the see fit. Should I try to talk with these kids and try to convince them to find a better home for this pup or call office and talk to them?