You ask, "Exactly what federal securities laws have been violated here . . . ."
On the basis of the facts set forth, we shall assume that there is U.S. jurisdiction and that the corporation's stock is publicly issued. We shall address neither state law (e.g. "blue sky laws") nor common law (e.g. fraud), but we shall assume that the question requests cites to both criminal and civil law.
The two key federal acts are the Securities Act of 1933 and the Securities Exchange Act of 1934. Under the given facts, both are applicable to both the CEO and the auditors, as well as the corporation itself.
In their entirety, the given facts describe a horn-book violation of the Sarbanes-Oxley Act of 2002.
See the cites below for the statutory language and for information about the background and scope of these Acts.
Please re-post if you have additional questions or further information about the facts.
Hope this helps.
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