"whatever faults" is a grammatically correct and commonly used phrase in written English.
It is typically used as an introductory phrase to introduce a list of faults or flaws of something or someone. Example: Whatever faults John may have, his dedication to his job is unquestionable.
Whatever faults there have been in the organisation, and whatever difficulties with the infrastructure, this Cup of Nations has had better local support than any in recent history.
"Whatever faults Tom Stoppard may possess as a screenwriter and Joe Wright as a director, timidity cannot be counted among them.
Whatever faults are more visible in Venus Williams's game than in her little sister's, she made up for them this fortnight with unflappable calm and unrestrained shot-making.
Whatever faults you in the eyes of God — your carnal desires, your greed, your attachment to what is unworthy — your mortal prophet lifts from you and takes unto himself.
He is referring to the method whereby recruits to the Cause can be cleansed of whatever faults and stains continue to foul their existence — nagging Freddie about his "past failures" and calling him a "silly animal".
All in all, the president's explanation struck me as the statement of a man who, whatever faults he may have shown in office, understood the pardon power in the way the founders of America intended.
Whatever fault lines have emerged during this campaign, the belief that lower taxes targeted at "job creators" will unleash a roar of economic growth crosses them.
As he wrote in 1985, "Whatever fault may be placed upon racism in America, the responsibility for the behavior of black youngsters lies squarely on the shoulders of the black community itself".
I would also like to see the creation of a single market regulator, with the flexibility for that federal regulator to call for the creation of divisions that would be broken down upon whatever fault lines the task force initially recommends.
One witness reported that "Whatever fault was found, Mr Christian was sure to bear the brunt".
No armored vessels were commissioned while he was in the Senate, but whatever fault there was lay elsewhere.
