Attorney Mathew Rosengart filed legal docs in the ongoing legal battle against Jamie Spears, saying the battle will be won with documents, physical evidence and the testimony of Jamie. Rosengart says Britney's testimony would not be relevant to any legal proceeding.

Rosengart goes even further, saying he has no reason to call Britney as a witness if the case ends up in trial. He says the fact she would not be called as a witness "eviscerates" any reason why she would need to be deposed.

It appears Rosengart is zeroing in on alleged malfeasance on the part of Jamie that involves money. Although he hasn't played his hand, it seems he may be steering clear of some of the personal allegations Britney has made against her dad.

As we reported, Jamie has asked the judge to order Britney to sit for a deposition, arguing she has made numerous claims against him in court and on social media and some of these allegations go to his performance as a conservator. Jamie has disputed many of the claims Britney made in court a year ago in June.