Here's a plan for you to comment on if desired. A lot of Tranquillina's first year at Mons Electi was spent making herself a more effective Diocetes. For a full year, between the autumn equinoxes of 1223 and 1224, she spent three days a week being tutored by Otto in French.* At the same time, she practiced her spell Perception of the Conflicting Motives repeatedly, concentrating especially on doing so without speaking. (In her spare moments, especially when the weather was cold, she fussed around with better organizing the vanilla lab she was issued upon her arrival.)
[size=85]* Mechanically, she spent two seasons getting xp from a Teaching source. I like to consider this an abstraction of her multitasking during that year.[/size]
After this first year, Tranquillina is able to hold conversations on everyday topics with the French-speaking covenfolk. Due to her spell mastery, she is also able to cast both Aura of Rightful Authority and Perception of the Conflicting Motives, silently and without gestures, automatically without fatigue (inside the Mons Electi aura; actually, on the mundane side, I think AoRA has a 10% chance of fatiguing her.) Both these spells require only eye contact with the [strike]victim[/strike] beneficiary, and they're low enough level not to warp anyone when used occasionally.
Correspondingly, she plans on "interviewing" covenfolk on a regular basis. 2-3 days per week, she will arrange a post-breakfast meeting (just 5 minutes long or so) with 1-2 covenfolk, preferably near where they work to put them at ease. She'll remind them of important duties and security measures (which the Aura will reinforce), and she'll probe their motives to see if any are discontent, uncertain, traitorous spies, etc. This isn't foolproof, but it should be a huge step towards making sure that trouble isn't going to strike Mons Electi from this unexpected mundane angle in our own home. (Thanks to her nausea-related sigil, she will probably also become the main character in a coherent set of stories the covenfolk start to invent about her....)
Very very roughly, Mons Electi has about 50 grogs, about 50 other named covenfolk (at the moment), about 50 other servants, and about 50 teamsters. Tranquillia can choose the 20 most important covenfolk fron this list and interview them once every two months or so; the 60 next most important covenfolk (including most or all of the grogs) she can get to twice a year or so; and the rest of them about once every year and a half or so. (This doesn't mean every single human working for the covenant - far from it - but it does cover those with access to the regio-side mansion and hence to magi, to covenant assets, to weapons, and to convenient contacts outside the covenant.) Apprentices and familiars are exempt unless specific permission is given by the corresponding magus; personal servants are not exempt (nor should they be!), but Tranquillina will approach the magi first to keep them in the loop.