Film Talk

I was hoping to to get any advice/perspective from anyone on the forum who has been through presenting their feature film project to Producers. Im finally at the stage after many years of work, sitting down with potential partners, mostly here in Paris. Im getting some great positive interest but i've had 2 different separate producers ask me to sign over ownership (almost there and then) to take the project forward. Is this an immediate red flag or just normal way of working? sorry if a naive question. For anyone interested on type of film it is we put together footage at http://www.lapin.run»