Updated

Former "Dance Moms" reality star Abby Lee Miller's defense attorneys  are trying to chip away at about $775,000 in income that federal prosecutors in Pittsburgh say she tried to hide from a bankruptcy judge.

The amount is important for Miller's defense because it will drive the sentence 51-year-old Miller receives for her bankruptcy fraud plea last year. Prosecutors want her to spend 2½ years in prison, while her attorneys are hoping she'll get probation.

The hearing is being held Monday.

Miller's attorneys questioned an FBI agent about his calculations of Miller's alleged misstatements before calling her bankruptcy attorney to explain her case.

The judge already has filed tentative findings essentially agreeing with the defense that Miller deserves probation because no creditors lost money once the bankruptcy fraud was discovered.

The Associated Press contributed to this report.