This philantropic lady (http://www.uesp.net/wiki/Morrowind:Ilmeni_Dren) shouldn't treat you as a trespasser in her flat no matter what time of the day it is.
In fact, all people who rent flats at St. Olms' and St. Delyn's treat you as a trespasser no matter what time of the day it is. This may be appropriate with them, but definitely not appropriate for Ilmeni, since she has quests for you.

It seems that quite a lot
never mind, missed that you need to be House Hlaalu to advance her quests. probably still worth a casual check, though.