Hey,
So you want to be an apartment manager in San Francisco? Not a good idea. I've done this and my dad is a manager and I can tell you that it sucks. Pretty much you will spend all day at school in classes and lab, and finally get home, only to find a pile of messages about this or that being broken, someone wanting to schedule appointments to come see the apartment for rent, etc.
I have a lot of sympathy for apartment managers. I'm not one anymore, but I live with roommates who have no freakin' clue about it and they are pretty much the classic tenant I used to deal with. Whine and complain over the most insignificant things: the door knob handle turns funny to the closet door that we never ever use, so we need it fixed. The faucet rumbles for 1.25 seconds when you first turn it on in the morning, the window screen to the window that we never open has two tiny holes in it. She cries a freakin' river over every idiotic thing and gets all huffy about how we pay good money to live here so things need to be fixed ASAP and how dare you expect her to take time out of her busy day to be home to let the repair man in. All the while she seems to have forgotten that she has behind the landlord's back snuck her boyfriend into the house to live and pay half the rent (essentially she is only paying $275 a month in an comfortable California property within 15 minutes of everything in San Diego), she completely ignores rules about scratching the hardwood floors with furniture, and she takes absolutely no part in upkeeping the lawns which she promised the landlord she would do because she "loves to garden".
I say this not to complain about my roommate because she has many good qualities that don't have anything to do with the kind of tenant she is, it is more to just warn you. 50% of the tenants you will deal with will pretty much self-ruin their apartments through idiotic actions (tossing massive amounts of junk down garbage disposals, clogging drains by removing the filters so it drains faster) and then expect you to fix all their problems...and fix them immediately, because they have things to do and these minor inconveniences just won't do at all. Trust me, after a long week of dental school, you won't want to deal with these people at your door