Why do some Masters want their 'slaves' to work outside of the home? i can understand a submissive partner being gainfully employed, but slaves are no better than dogs. Would you send your dog to work?
Slaves should be naked and miserable, not putting on a pair of pants and punching a time clock. They shouldn't even be outside without Master's supervision.
If You can't afford a slave (and believe me, the upkeep is minimal), then maybe You should stop looking for one and advertise for a submissive roommate. ;)