Im a lab guy, remember you are going to buy a dog that will live for 10+ years, do you plan on living in that apt for 10 years? I would say buy a dog thta fits your criteria and move if you have to, thats just my opinion. If you can run the dog every 3-4 hours and can kennel train your dog a lab should do fine. once again I am a lab guy though, Am just starting to do my research on breeder to hopefully buy a new pup this spring. Good luck.