I had an account with UBS. Couldn't get out of there fast enough after I started figuring stuff out on my own.
Definitely look into moving her out of there but they will hit you with closing and transfer fees so be aware (small price to pay really).
If you are still learning yourself and/or don't feel comfortable with handling her stuff (and especially if she would resent you if the market decided to screw around and other things beyond your control) I would try to find a fee-only adviser that is not affiliated with any specific fund group. But that would still mean paying someone to go through everything with her, advise what funds they think she should be in, and hope that they aren't going to have a vested interest in pointing her to one thing or another and all the while paying a few hundred each time you meet with them. Check out
http://www.napfa.org/ for the fee-only adviser organization.
If she was a teacher, she should be trying to at least understand the basics herself - knowledge is power and she was a TEACHER for dog's sake! I'd try to get her to read a few things (like Jim Collins' excellent stock series) and then see if she would be interested in the very easy, streamlined index fund portfolios that he discusses (and are pretty much the lazy portfolios that are the Boglehead standards). That way, she can move everything over to Vanguard, get super low expense index funds and I believe can call them and discuss stuff any time (not sure how detailed they can get, but they'll help her as much as possible and they won't try to sell her on stuff she doesn't need either).
Vanguard is client-owned and it is operated at-cost, which means that they aren't trying to sell hugely inflated expensive funds to satisfy some board of directors and line their pockets - the investors themselves are the indirect owners of the company.
She can still discuss with you as long as she doesn't expect you to be her main "adviser" person... but I'd make sure and say exactly that "I'll help you as much as I can but you have to understand I'm not a professional money manager and don't get mad at me for things I have no control over." and make sure your spouse is there too as a back-up/mediator when discussing so feelings don't get hurt.
Some reading materials:
http://jlcollinsnh.com/stock-series/http://jlcollinsnh.com/2012/03/09/you-too-can-be-conned/http://jlcollinsnh.com/2012/06/06/why-i-dont-like-investment-advisors/