"handle all matters" is correct and usable in written English.
You can use it when referring to a person taking responsibility for or dealing with various affairs or issues. For example, "John was appointed to handle all matters related to the launch of the new product."
Just who should then handle all the related policy matters that Icann, by default or design, has taken on (though not necessarily resolved), remains unanswered.
Our second conversation, in 2004, included the unsurprising disclosure that Karl Rove was handling all matters related to the re-election.
"Our experience with Bush Sr .is an excellent one and the way he handled all matters during his term was a perfect way, such as with the gulf war.
A spokesman for Egypt's Interior Ministry, which handles all matters of internal security, was furious at being asked about the case.
This meant approaching the OVIR office, which handled all matters of foreign travel in the USSR.
Ambassadors were recalled, and the Swiss government handled all matters until the U.S. Interests Section was created in the same building in 1977.
During 1990, this office handled all matters related to the implementation of the ITQ Programme, including answering inquiries from the industry, handling the correspondence to licence holders, providing administrative support to the Working Group and industry consultations, conducting data and document checks and providing support to the Allocation Review Board.
Many online sites provide background and credit checks, for fees starting at $25. Handling all those matters, however, is only half the challenge of having a roommate.
As Deputy to the Fuehrer, Hess was the top man in the Nazi Party with responsibility for handling all Party matters, and authority to make decisions in Hitler's name on all questions off Party leadership.
