Hello! I am interested in the Accelerated MBA at Pepperdine but I have a few concerns about the reputation of the school.

Since I will be in LA temporarily the 12 month length is ideal. I am just wondering how well the school is known outside of California because I don't plan on staying.

I would really like to do an in class program rather than through distance learning. There don't seem to be many other good one year options in / around LA. I would be open to alternatives though.

I think the reputation of Pepperdine is a Google search away from you.
Of course, the choice of degree hinges on your goals. USC IBEAR could be an alternative.

My aunt used to be an assistant dean at Pepperdine (not business) so I might be biased.  Pepperdine is very well known and respected within LA.  Within LA, Pepperdine is probably seen as just a step below USC and probably just as good as any UC (excl. berkeley and UCLA).  But once you move further from LA, its reputation drops drastically.  It reminds me of another private school (Fordham in NY) where there is a vast difference in perception within and outside the city.   
If you are thinking of moving abroad, then it makes no difference if you attend Pepperdine or any random school in LA (e.g. Cal State schools) based solely on reputation.  

One other thing they have in comon: https://www.complex.com/pop-culture/2013/11/the-worst-party-schools-in-the-us/pepperdine-university

USC would be a much better option if your sights are set beyond the southland. But in LA - and southern California more broadly - Pepperdine has an excellent network. 

It's really too bad that UCLA doesn't offer a 12 month option. 

I have looked into the USC IBEAR program and it honestly looks really interesting. However, what makes me a bit weary is that their class profile says that the average number of years of work experience is 12. With only 5 years of overall work experience I am much closer to the Pepperdine class average (3 years) than 12 years. The cost of the program is also a bit of a deterrent, although I could stomach it. 

It's really too bad that UCLA doesn't offer a 12 month option.