Old owners let thier dogs pee freely everywhere and spas flees

[Yerry Balenzuela]

Hey I have a home that I'm going to have to change all the rugs and floors. I'm uncertain what to do about the unsanitary sub flooring. Will a good water proof underlayment be enough and who can I call to kill the flees and God knows what else around the house. Will pest control be enough and what should I tell them to spray?