i'm searching for a historical romance novel i read a couple years ago about a rich nobel widow man who want to buy a nanny to help him raise his
I haven't read the whole book but that's' all I could remember
That the heroine poor and have a younger sister and the hero is rich and has a daughter
We're searching! Do you remember if this was part of a series, such as Harlequin? Or can you remember the names of any of the characters?
I found a book that does not quite match all the details you mention, but does sound close: two sisters, undesirable red hair, man seeking nanny for his daughter, who becomes attached to the red-haired sister. It is Red Moon, by Elizabeth Kelly. You can see a description at Goodreads http://www.goodreads.com/book/show/18404781-red-moon--unfortunately Omaha Public Library does not own a copy of this.
Let me know if this is the one, or if you can think of a couple more details! Every little bit helps.