So the only apartment complex I found that accepts dogs was Grindstone Canyon (but it has to be less than 30-35 lb). It seemed pretty nice, and is about 5 minutes from the vet school. There were some really nice little condos/houses off of Providence - take stadium west and it will run into providence by the football stadium, take a left on providence (so you're heading south) and then a left on Campus View Drive (east). That street runs into this little neighborhood with some nice places (street names were boulder, ames, stillwater, norman, manhattan, and umc). We saw probably 7 that were currently being sold/leased and many were all-dog friendly. Somewhat pricey though for a single person. I've also heard there are more properties off Green Meadow Road. From some family I have in the area, the southern/SE part of the city is the "nicer" section. If yall have any questions, feel free to ask/pm me.