I joined this site because this is my first Yorkie. Max is 10 months now and is very stubborn

I never thought a dog so small can be this stubborn but loving. He was easy to train to use the bathroom

outside but now he has started to mark the house

. Now getting him to stop marking my house has been real hard. So far I have bought the no marking spray from petsmart and its been working on the spots he has marked already

but now he is marking new areas

. help!