The phrase "acted for him" is correct and usable in written English.
You can use it when describing someone who is representing or taking action on behalf of another person.
Example: "During the meeting, she acted for him while he was unable to attend due to a scheduling conflict."
Alternatives: "represented him" or "spoke on his behalf."
At worst, some of the boys who acted for him thought he might be a spy for the occupation.
While he was a child, two guardians, representing the rival Turkish and Circassian factions, acted for him.
Didier de Quévy, a lawyer who represented Mr. Trabelsi at his trial, said that he no longer acted for him and that he had not spoken to him for about nine months.
He made money as a grain merchant and lost it as a salt manufacturer; then, after the Civil War, he moved to Cleveland, became caught up in the burgeoning oil industry and joined forces with the owner of a small refinery who had previously acted for him as a commission agent in the grain business, John D. Rockefeller.
With his name a global brand worth millions of dollars, Mr Mandela has also been involved in a long-running dispute with his former lawyer Ismail Ayob, who acted for him when he was in jail on Robben Island, and businessman Ross Calder over the sale of artwork bearing his signature.
The Minister for Air, Arthur Drakeford, was in favour of Williams commanding the RAAF offices in both the US and UK while Wrigley acted for him in London, despite Wrigley having been appointed AOC.
First, there must be a manifestation by the principal that the agent shall act for him.
But the cutter acts for him the way it does for no one else.
Court records show that he has retained McGarr Solicitors to act for him.
"One day Miguel left a message on my machine asking if I'd act for him," he said.
Murat's means were modest, but lawyers were willing to act for him on a "no win, no fee" basis.
