The phrase "act as adviser" is correct and usable in written English.
It can be used when referring to someone taking on the role or responsibilities of an adviser in a specific context or situation.
Example: "In this project, I will act as adviser to ensure that the team stays on track and meets its goals."
Alternatives: "serve as a consultant" or "function as a mentor".
The aim is to break investment banks' perceived stranglehold over companies in cases where they act as adviser and underwriter.
Lessing then accepted the offer of some Hamburg merchants to act as adviser and critic in their privately funded venture of a national theatre.
Franju will direct, Duras will write the commentary, Ben Barka Simon Abkariann) they hope will act as adviser, and the picture will open the conference in Cuba.
Intense scrutiny of conflicts of interest, like the sort exposed in this case, will make it harder for the firm to act as adviser, financier and marketmaker for clients while at the same time investing aggressively for its own account.
Part of his job as head of the Bibliothèque, he writes, was to act as adviser to Pétain, and once a month he travelled from Paris to Vichy to confer with the old man.
If Goldman could both act as adviser, financier and marketmaker for clients and invest aggressively for its own account, while keeping those roles in balance, it could steal a march on rivals that shied away from this juggling act.But the conflicts became more tangled as finance grew more complex.
But American officials insist that the units are under Afghan control and that the Americans act only as advisers.
British and US police and military officials act as advisers to Iraq's security forces.
The president appoints an executive vice president and a Council of State, the members of which act as advisers and ministers.
The American soldiers – mostly Special Forces – will act as advisers and intelligence gatherers to the Ugandan military already in the area.
In addition, the growing complexity of modern government has greatly augmented the informal power of senior civil servants who act as advisers to ministers.
