hi there - just a word of caution - be very careful leashing a dog in the house - they can easily wrap it around furniture and strangle - unless you have someone in the room at all times watching it could be a hazard.
A neighbor (who I kind of despised) a long time ago kept their dog tied up in the yard - they came home one day to find him (for lack of an easier word) hanging
......he'd become so tangled and no one was there to save him