Federal authorities arrested a Missouri woman on Friday, accusing her of orchestrating a brazen effort to shake down the Presley family by threatening to fraudulently foreclose on Graceland, Elvis’s home in Memphis, which is now a popular tourist attraction.

The authorities said that they had arrested Lisa Jeanine Findley, 53, of Kimberling City, Mo., on charges of mail fraud and aggravated identity theft. They said she also went by other names, including Lisa Holden, Lisa Howell, Gregory Naussany, Kurt Naussany, Lisa Jeanine Sullins and Carolyn Williams.

“The defendant orchestrated a scheme to conduct a fraudulent sale of Graceland, falsely claiming that Elvis Presley’s daughter had pledged the historic landmark as collateral for a loan that she failed to repay before her death,” said Nicole M. Argentieri, the principal deputy assistant attorney general at the Justice Department.

If convicted, Ms. Findley faces a mandatory minimum of two years in prison for aggravated identity theft and a maximum penalty of 20 years in prison for mail fraud.

Exactly who was behind the threat to sell Graceland, a popular and lucrative tourist attraction that draws 600,000 visitors a year, had been a mystery.

The case burst into the public eye in May, when lawyers for the actress Riley Keough, the granddaughter of Mr. Presley, went to court to stop what they said was a monthslong, fraudulent scheme to sell Graceland by a company known as Naussany Investments & Private Lending LLC.