I can't speak to the ban, but as far as your 9% accommodations tax, the answer varies by area. For instance, I have rentals in South Carolina. ABB adds the state, county and accommodations tax at check out, however, they don't collect the island tax (Hilton Head Island has its own 3% tax) so I add that as one of the additional charges at set up of the property and remit on a quarterly basis to the island.
In other cases, they collect all taxes and in rare cases, very few taxes. It really based on the state and local governments they work with, and the states willingness to work with them. Hope that helps. You can see what they collect on your behalf under the Taxes Collected section for your listing.