The lady, presently 43, has recorded a claim asserting that the couple bugged her to attempt to make her reclaim her cases, US media report.
Unimportant served four-and-a-half years in jail in the wake of conceding to endeavored assault of the then teen.
Last year he was captured for inability to enlist as a sex wrongdoer.
In the claim, recorded in the US District Court for the Eastern District of New York, the lady affirms that Ms Minaj offered her $500,000 (£360,000) through a mediator as a trade-off for abnegating her allegations against Petty.
The claim guarantees that, not long after Petty’s capture in 2020, the mediator gave the rapper the lady’s number. Ms Minaj is claimed to have called her and offered to fly her and her family to Los Angeles in the event that she could “help” her.
The lady additionally guarantees that she turned down Ms Minaj’s proposal to have her marketing expert draft an assertion abjuring the charge.
As indicated by the claim, the lady is said to have disclosed to Ms Minaj: “I need you to know lady to lady, that this occurred.”
The lady further cases that not long after dismissing the offers, she and her family “experienced an invasion of bugging calls and spontaneous visits”.
The lady said she had not had the option to work since May 2020 “because of extreme sorrow, suspicion, consistent moving, provocation and dangers” from the superstar couple and their partners.
The claim, which looks for undefined harms, says she is living secluded from everything as she fears counter.
The performer’s legitimate group has not yet reacted to the allegations, as indicated by US media.
Ms Minaj and Petty started dating in 2018 and reported a year after the fact that they were hitched. The couple have a 11-month-old child.