public void foo(string Comment)
    {
        WebDriverWait wait = new WebDriverWait(_webdriver, TimeSpan.FromSeconds(10));
        var newhouse = wait.Until(x => x.FindElement(By.Id("new_housenum")));
        var hiddentElement = newhouse.FindElement(By.CssSelector("div[class='ms-crm-Inline-Validation']"));
        string  js = "arguments[0].style.display='block';";
        ((IJavaScriptExecutor)_webdriver).ExecuteScript(js, hiddentElement);
        hiddentElement = newhouse.FindElement(By.CssSelector("div[class='ms-crm-Inline-Validation']"));
        if (hiddentElement .Text.Contains(Comment)
        {
            //log
        }
        else
        {
           //assertion
        }
    }