As far as I can see if it was public property when you took the photo then there's no wrong. If you'd sold the photo before they bought it they'd have no comeback so I don't see how it's any different.
As long as all the exif is intact to show that it was indeed taken before they owned the property you will have no problems as far as i can tell.
The only thing is do you be polite and tell them, so they wont kick you off the next time you want to take a photo there?
Have you showed them your Blog? Since you write so positively about the area and review the local businesses, you should be seen as a positive force for RTW, not an evil money grabbing 'tog.
Show them that you have recently gained extra exposure for the area via newspaper articles etc referencing your blog.
Being taken before they bought it sure makes me feel a tad easier about it.
I'm just going to call them on Monday and ask what they think about it, just see how it goes. I'm sure going to mention the blog to try and make it into a positive thing.
Thanks all for your comments so far 






