doubt with action result

I have a form that by necessity has to be divided into 2 since the first part varies for some users and the second one may or may not vary, when dividing the form my first problem was that I could not validate the whole model because I was divided into 2 forms so validate it with javascript, after validating it I send it with the following code:

 $.ajax({
          type: 'POST',
          url: '@Url.Action("RegisterDomicilio", "Account")',
            dataType: 'HTML',
            data: $("#RegisterDatos").serialize(),
            success: function (data) {
            }
        });

in my driver I receive it without problem

[HttpPost]
    [AllowAnonymous]
    public ActionResult RegisterDomicilio(RegisterViewModel model)
    {
        switch (model.selectedTipousuarioId)
        {
            case 1:
                model.Estados = GetEstados();
                return View("RegistrarUsuarioDomicilio", model);
            case 3:
                model.Estados = GetEstados();
                return View("RegistrarAlumnosDomicilio", model);
        }
        return View();
    }

My problem comes when I want to address it from the controller to another form, it does not stay on the same original page.

Does anyone know how to redirect it well?

greetings