I got quit claim from a lawyer. Trying too get me deed over land my deceased father owned with my sister . Why should I sign this . Mother still alive

I cannot think of one good reason.  A quit claim deed does not transfer title.  It is more properly used to document the quitting of a claim for use, such as an easement over someone's driveway to get to your property. If your father gifted his interest in the land to his sister in a Will and you are the executor or administrator of his estate, you may record a Distribution Deed (formerly called an Executor's Deed). If not, or if he did not leave a Will and you inherited the land and want to give it to your aunt, you can record a Deed of Gift (either a General Warranty Deed or a Special Warranty Deed).