The part of the sentence "has now succeeded" is correct and usable in written English.
You can use it to indicate that something has achieved its intended result or has recently been accomplished. For example: "After months of hard work, the company has now succeeded in turning a profit."
A case brought by the lawyer Miguel García has now succeeded where political protest failed.
Douglas Earick, a teacher of science in the Albuquerque Public Schools, has now succeeded Laura Cameron as Co-Director.
The March 28 New York Times wrote, "Mr. Khrushchev has now succeeded to the posts that Stalin had formally combined.
Smith's defense team has tried several times to have the case moved away from Montgomery and has now succeeded.
Bang's initial experiments were done in test tubes, but she has now succeeded in "growing" limestone directly within cracks in concrete blocks.
To a great extent, the firm has now succeeded, even though the display still works only at the "sweet spot" where the viewing angles coincide.
They have now succeeded in securing most of Mogadishu, without making nearly as many enemies.
The issue for the conventioneers was that after struggling since the 1970s to have the comics taken seriously, they have now succeeded, perhaps too well.
But Republicans in Congress have now succeeded in renaming Washington's National Airport after Ronald Reagan, their party's living saint.Not everyone is pleased with this.
But the cabal of senior players who forced Brown's hand have now succeeded in driving out their coach, leaving his former assistant Paul Anderson to take charge.
Noting that there was "a lot of doubt" at the beginning of the year "about whether compromise could be negotiated" between the E.U. member states and Parliament, he added, "We have now succeeded in doing that".
