So, while researching some info for the library thread, I stumbled upon something that might completely change Lucas' status. When we were setting up the Mercere Lodge, a charter was written detailing the arrangement. If you follow the link, the initial wording of one of the provisions of the charter stated, "Andorra will offer membership at Master level to any one Mercurian magus Mercere, at House Mercere's discretion." This seemed too steep to Marko (and I agree) and so he recommended changing it to, “Andorra will always hold one membership seat to be held by a magus of House Mercere. If the seat is vacant, House Mercere may assign one at their discretion. The covenant may invoke the right to require House Mercere to provide up to three candidates."
Now I think the intent was that it would read, "“Andorra will always hold one membership seat to be held by a GIFTED magus of House Mercere. If the seat is vacant, House Mercere may assign one at their discretion. The covenant may invoke the right to require House Mercere to provide up to three candidates."
If Marko and/or PB can confirm that, then it changes things for Lucas. Essentially Lucas would be granted journeyman status immediately without need for the 7 seasons and 3 services, and could reside at Andorra.