That's not so much to do with Hilary but the bad practices of Hollywood Records.
In 2006/07, how can you afford A-list writers and producers on an album with a budget of $500k? By promising all the producers their music will be published and released as a single.
She did say that she wouldn't sign until the record was finished right?
She did, but she also said that she may have to tweak some things for the label. Also, generally when an artist records a complete album before shopping it they are asked to record more songs after signing too.
I: You've made quite a good living out of people being able to do that.
R: It's funny, I have. That's the twist, isn't it? But that, to me, goes back to the craft of songwriting. I learned to write in Nashville, which is the epicentre of some of the best songwriting in the world. Lyrically and melodically that city's known for its songwriting. And thank God for songwriters or there wouldn't be Frank Sinatra. Or Elvis.
I: Or Hilary Duff.
R: Oh God (guffaws) let's not go there. Remember when I was talking about how I needed to make a living from songwriting? There you have it. Oh man, there's some stuff… At a later date I will go on record… When I give less of a **** about certain people. I'd love to write a tell all book about certain artists and how little they care.
If it's Epic..... Nnnnnnnnnnnnnnnnnnnn 
I mean she believed in him as an artist in the first place to write a couple times with him.
