Sorry but here goes,first the real issue is teching how to use a potty pad,I always start with soaking up pee pee with the pad,then they know where to go,second its not nice to lie,I have always found if your honest things always work out,tell the truth to the landlord, if they say no pets,then find a new apartment,are you being fair to anyone doing this,especially to the yorkie..who wants to live where you have to sneek and hide..yorkies are dogs,yes its had to remember that,but it is a fact