"legal validity" is a correct and usable phrase in written English.
For example: "The court ruled that the contract had legal validity."
The Philippines is challenging its legal validity.
But federal and state courts are recognizing the legal validity of many of these cases.
True, a "gagging clause" has no legal validity as regards public interest disclosures.
The question of the legal validity of khap panchayats has been often raised in the courts.
Bonn and the Western Alliance contend that the East German government has no legal validity.
Some victims of IRA violence have begun legal action to test the legal validity of the scheme.
"But the Greek courts restricted themselves to recording the decisions, and did nothing to check their legal validity," Ktistakis adds.
It states that Israeli settlements have "no legal validity" and are "dangerously imperiling the viability of the two-state solution".
As a result, Ontario changed the entire system in 2006 to strip the rulings of any religious arbitration of legal validity or enforceability.
Our research shows that the prevalence of this tradition is not due to the lack of awareness about the legal validity or legitimacy of this practice.
Mr. Correa had previously disputed the campaign-finance claims based on the computer files, saying they lacked "technical and legal" validity.
