I think you potentially have a bigger issue than the pet odors. Two years ago i had clients in escrow on a house in LC Oaks. The wife wasnt allergic to dogs and had been around many through out her life. During the inspection, she spent a couple hours in the property and became very ill. We had to cancel escrow as there is no way to guarantee you can get all the allergens out of the house. Dont let the agents minimize this concern as its your health not theirs.

You mentioned you were both allergic to dogs and that is the bigger issue. I dont know if you have done the physical inspection yet but I would encourage both of you to go and to stay in the house the whole time. you really need to evaluate the potential health impacts of this. You can always get rid of or mask odors so thats much less of an issue.