New house smells like animals

My fiancé and I are moving into a new rental house with our 1 year old and I’m super excited. We wouldn’t have chosen the house if it was a complete disaster, and honestly I have 0 complaints besides the smell of one of the bedrooms.

It smells like they left their dogs in that room and the carpet smells strong of animal pee...

My question is how can we get the smell out without spending a lot of money?