The phrase "acting to seize" is correct and usable in written English.
It can be used in contexts where someone is taking action to take control of something or to capture an opportunity.
Example: "The government is acting to seize control of the situation before it escalates further."
Alternatives: "moving to capture" or "taking steps to acquire".
The objection prompted M&B to ask the Takeover Panel to determine whether Lewis and his associates were acting in concert to seize control of the company without mounting a formal bid.
That's real acting to me".
"We're acting to reassure the population".
For instance, during the 1980 campaign Reagan opposed the Carter administration's insistence on an Olympic boycott--which required acting like the Soviets by threatening to seize the passports of individual athletes who might be tempted to travel to Moscow.
Israeli ground forces moved into a Palestinian village outside the West Bank city of Hebron today, acting after the Israeli security cabinet endorsed a plan to seize and hold Palestinian-controlled territory until Palestinian attacks ceased.
Lawyers acting for the administrators have gained a court order to seize a preliminary £3.6m from Whyte's solicitors Collyer Bristow.
Speaking at the official opening ceremony Mr Baba Danbappa UNICEF acting Representative in Timor-Leste impressed on the youth to seize the opportunity and sustain the dialogue with their leaders.
He thought this life was over, and she was able to seize on his ambivalence, keep him from acting on his impulse.
"If a family knew in biblical times that the Egyptians were planning to seize their first-born son, they would act the same way that the Corneaus are acting".
Ultimately, Bass agreed, and he and Bannon concluded that the only solution was to seize Biosphere 2 from Allen's management, and to install Bannon as the acting C.E.O.
