Sec. 61.025. DISCLOSURE TO PURCHASER OF PROPERTY. (a) Except as provided by Subsection (b), a person who sells or conveys an interest, other than a mineral, leasehold, or security interest, in real property located seaward of the Gulf Intracoastal Waterway to its southernmost point and then seaward of the longitudinal line also known as 97 degrees, 12', 19 which runs southerly to the internati