Billy Ray Cyrus’ estranged wife Firerose accused him of interfering with her career — and costing her a Hallmark movie deal when his reps dropped her after their split, RadarOnline.com has learned. After less than a year of marriage, Billy Ray, 62, filed for an annulment from Firerose, 36, in May. In his petition, Billy Ray cited “irreconcilable differences” and “inappropriate marital conduct” as reasons for the split. He claimed Firerose agreed to move out of his home in exchange for $5k per month for three months to assist with housing, according to In Touch. The county singer also requested…