@Dena37
Hello Dena and Brad, and welcome to, not just Airbnb, but the hosting community here on the CC.
Brad, Airbnb (the company) would not want to be involved with anything relating to property versus owner verification. Airbnb deals with users, not properties. It is the person who has the profile, not the property.
Many hosts list multiple properties....some list over 1,000!
Many hosts use Co-Hosts who do not have any interest in the property other than a partial caretaking role.
Some hosts list properties in other countries which are subject to differing rules from the US.
The outlay and effort for the positive return to sweep up those odd few would be enormous and not something that Airbnb would want to be a part of.
Airbnb state in their agreement that it is up to the host, the profile holder to make sure they have all required approvals before making a listing public. As you say 99% of listings are legitimate and those that are not have their accounts closed immediately. If a host lists without the required approval from landlords or management authorities they will invariably be warned and threatened with action if they continue.....the system works.
If owner verification had been a significant problem in the past Airbnb would not have grown as spectacularly as it has.
Brad I think your enterprise and spirit is great but I wouldn't too much effort into this, I think it will fall on deaf ears!
Cheers.....Rob