The phrase "appears to maintain" is correct and usable in written English.
It can be used when discussing something that seems to continue or uphold a certain state or condition.
Example: "The study suggests that the organization appears to maintain a strong commitment to sustainability practices."
Alternatives: "seems to uphold" or "appears to preserve".
Yet he appears to maintain ties with the four clinics.
Yet SC Strategy appears to maintain a degree of clout in Whitehall.
Written in more than 700 pages of legalese, the bill appears to maintain traditional shares of aid to localities.
He appears to maintain a hold on power in the capital, with dissidents maintaining a low profile for now.
The latest jobs report appears to maintain the status quo, and for Wall Street, that's not a bad thing.
This approach appears to maintain sufficient bone mass to stave off fractures of osteoporosis, an often crippling disease that affects 22 million American women.
His bachelor pad looks like the bunker of a Bond villain, although what interested me was the mini-apartment that he also appears to maintain at the magazine's offices — somewhere to pour himself a drink and change his shirt.
The club has its roots in the gay scene but most nights has a very mixed crowd – and it's exactly this variety that the bouncers are trying, it appears, to maintain.
Yet in reality he's rather more like Bruce Wayne himself: a suave, rich and good-looking individual with an arrogant air about him, but one who nevertheless engages in philanthropy and appears to maintain an intelligent, caring worldview.
She feels she is commenting on the human tendency to forget terrible things, on the propensity of young people, for instance, to say, 'Oh, it was all so long ago.' It is almost impossible to discern any autobiography in Hiller's work; she appears to maintain the Zen distance of a director sitting in the back row: emotional investment is oblique.
Plutarch appears to maintain that God's power is limited by the necessity (anankê) imposed by matter.
