asign only common fields in c# object

private Func<S,T> AutoMapFactory<S,T>() where T: class, new() where S : class
        {
            List<Action<T, S>> mapActions = typeof(T).GetProperties().Where(tp => tp.CanWrite)
                .SelectMany(tp => typeof(S).GetProperties().Where(sp => sp.CanRead)
                .Where(sp => sp.Name == tp.Name && tp.PropertyType.IsAssignableFrom(sp.PropertyType))
                .Select(sp => (Action<T,S>)((targetObj, sourceObj) => 
                    tp.SetValue(targetObj, sp.GetValue(sourceObj)))))
                .ToList();

            return sourceObj => {
                if (sourceObj == null) return null;

                T targetObj = new T();
                mapActions.ForEach(action => action(targetObj, sourceObj));
                return targetObj;
            };
        }