The phrase "acquire and maintain" is correct and usable in written English.
It can be used in contexts where you are discussing the process of obtaining something and keeping it over time, such as skills, resources, or relationships.
Example: "To succeed in this industry, it is essential to acquire and maintain strong professional connections."
Alternatives: "obtain and sustain" or "gain and uphold".
Being expensive to acquire and maintain, international patents tend to exclude the loony fringe.
Results are discussed as evidence that some "alcoholics" can acquire and maintain controlled drinking behaviors.
It would hire and train the private guards who screen passengers and their luggage, and acquire and maintain screening devices.
There is no foreign language requirement, however, students are encouraged to acquire and maintain foreign language skills.
Rugby is a high-impact collision sport, in which players have to exert extreme force in order to acquire and maintain possession of the ball.
There is no need for a firearms licence – customers are told they can "acquire and maintain [the Guardian Angel II] without authorisation".
The traditional explanation for an object like the Hummer — big, flashy, expensive to acquire and maintain — is that it's a conspicuous status symbol.
But the Girl Scouts continues to acquire and maintain a wide portfolio of corporate donors, and, according to Boockvar, it hasn't lost any.
Keltner has spent years studying how people acquire and maintain power in groups and what happens to their behavior after power is granted.
Wicker wrote: "That a Russian public servant could have amassed the considerable funds required to acquire and maintain these assets in Europe and the United States raises serious questions".
Whether you agree with Nick Srnicek's contention that they are now too big to serve the public good, and the radical solution proposed, his explanation of how these gigantic "platform" companies acquire and maintain their dominance is an essential read.
