How can we make sure the landlord knows about it?
İm in day 13
He already offered you the bathroom for 100k? He first makes the offer, then, if you accatept is 100k; if you don't, 200k... wait a couple of days and go outside alone until you trigger the scene where you give him the money. Then wait a couple more days, go outside until you trigger the remodelation scene, and that's it.