invoiceninja/app/Http/Controllers/Auth/ContactForgotPasswordController.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com)
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\SendsPasswordResetEmails;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Password;

class ContactForgotPasswordController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Password Reset Controller
    |--------------------------------------------------------------------------
    |
    | This controller is responsible for handling password reset emails and
    | includes a trait which assists in sending these notifications from
    | your application to your users. Feel free to explore this trait.
    |
    */

    use SendsPasswordResetEmails;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest:contact');
    }

     /**
     * Show the reset email form.
     * 
     * @return \Illuminate\Http\Response
     */
    public function showLinkRequestForm(){
        return view('portal.default.auth.passwords.email',[
            'title' => 'Client Password Reset',
            'passwordEmailRoute' => 'client.password.email'
        ]);
    }

    protected function guard()
    {
        return Auth::guard('contact');
    }

    public function broker()
    {
      return Password::broker('contacts'); 
    }
}