I've uploaded yesterday two map vectors on the site and they were rejected because of this property release form even if the source maps were taken from a public site:http://www.lib.utexas.edu/.
These maps are accepted without the property release form on other microstock sites.
In the model release of each file I've uploaded a Jpeg file with the details of the exact location of the source file on the site,the Illustrator thet I've used,date that the file was created and everything else they request.
What else can I do considering that I don't think that http://www.lib.utexas.edu/ will lose so much time to fill in the property release form for me?
Sounds odd, although once I was rejected for that, because I had uploaded the property release information into the MODEL release field... try it again and upload those documents where the PROPERTY releases go.
I do maps and they just require the public domain source cited in the Note to Reviewer, usually.