/home/dvjjulio/test.istyle.mx/app/Estado.php
<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use DB;

class Estado extends Model
{
    //
    protected $table = 'estado';
    public $incrementing = false;
    public $timestamps = false;

    public function estados($pais = 'Mexico'){
      $sql = "SELECT e.id, e.estado
              FROM estado e
              JOIN pais p ON p.id = e.pais_id
              WHERE pais = '$pais'
              ORDER BY e.estado";
      $query = DB::select(DB::raw($sql));
      if(count($query) != null){
        return $query;
      }
    }
}