The phrase "as a feud with" is correct and usable in written English.
It can be used to describe a situation or context where a conflict or disagreement exists between parties.
Example: "The negotiations broke down as a feud with the neighboring country escalated."
Alternatives: "in conflict with" or "in a dispute with".
He said that Harry Frazee had sold Ruth largely because of his misbehavior and salary demands as well as a feud with Ban Johnson, the autocratic American League president, that split the league and led him to sell Ruth to the one team that could truly afford him.
Fisher's teams aren't successful on the field, and off-field embarrassments such as a feud with the NFL's single-season leading rusher make the operation appear minor league.
CALAIS, France, Nov 2 (Reuters) - France moved hundreds of child migrants from the site of a demolished camp to reception centers across the country on Wednesday, as a feud with Britain over who takes care of the youths dragged on.
In the video, they admitted to killing the kidnapped men as part of a feud with La Familia, a cartel in Michoacán.
Bowie became internationally famous as a result of a feud with Norris Wright, the sheriff of Rapides Parish.
Triple H and Michaels revived D-Generation X (DX), since their teased reunion in 2002, and as a team began a feud with the Spirit Squad.
Development of the site by the Arden Group, which owns the adjacent Ritz-Carlton Philadelphia, was delayed for years as a result of a feud with rival developer Mariner Commercial Properties.
Shannen Doherty's acrimonious exit from "Charmed" back in 2001 has been well-documented over the years, with rumors that she left the WB show as the result of a feud with co-star Alyssa Milano.
MANILA, April 27 (AP) — A woodcarver suspected of beating a Peace Corps volunteer to death surrendered Friday and confessed on television, saying he had erupted in rage when she bumped into him as he was fuming over a feud with a neighbor.
On September 9, 2008, Hager made his debut on the ECW brand under the ring name Jack Swagger, winning a match against Oliver John He immediately established himself as a heel by starting a feud with Tommy Dreamer.
Jean Chretien, who held key Cabinet posts in a 23-year career that almost made him Canadian Prime Minister, resigned today as a member of Parliament in a feud with John Turner, the Liberal Party leader.
