1. Where the authority attempts to purchase real property for fair market value from any political subdivision in this state, such political subdivision shall, if at all possible and if it would not incur undue hardship, assist the authority by selling such property.
2. The provisions of sections 79.550 to 79.565 shall apply only in the boundaries of the municipality which establishes a municipal redevelopment authority as such boundaries existed on January 1, 1988. If any such municipality disincorporates after establishing an authority, the authority shall be dissolved, except that the authority shall determine the method of retiring any bonds issued by the authority.