CSLA project with WinForms and WEB MVC5 client

Hi,
I have complex project with win forms UI and I would like to extend the new features using web MVC 5 UI.

Have I toduplicate thebusinessobjectsandtheircodein business layer because of the different data binding technologies?

For example, for WinForms UI I use readonly root list stereotype business object (inherits from ReadOnlyBindingListBase<T,C>)and I would like to use the same business object in Web MVC interface but in this case I have to inherit from ReadOnlyListBase<T,C>.