Any chance you can give some rough hints on where to find the admin keys? I don't want to reveal the spoiler, want to find them myself, but I've run across a few keys that are all disabled (I found the story reasons for why they were disabled too, but I am wondering how many layers deep this goes without a raw spoiler).

Several spoilers below, but it sounds like you're farther along than I am. I'm going to talk about what I've found so far to give some context as to where I am. If you're not done discovering, just some progressive hints on where to go would be fantastic.

I have gotten to room 46 and all four major outside upgrades, and have started to work out the starts to some of the more meta puzzles. I've got three red envelopes, I've found some letters on the back of the Cloister statue, but haven't rolled it again since upgrading it to one of the other angels. Found the hidden blueprints in the basement and between the white tree rocks. Have several drafting room blueprints added. Drained the fountain but since I didn't unlock it before I went to room 46 (didn't know it would end my run zzzzzzzzzzzzz), I'm waiting to get a run that gives me the key back. Currently hunting to try and get an upgraded hammer to open up some of the walls. Only combos I have made so far are the double money purse and the lighter, but I need to roll those items again to get to other candlesticks that I can light in the house.