TenantScope.php

<?php

namespace App\Http\Middleware;

use App\User;
use Auth;
use Closure;
use HipsterJazzbo\Landlord\Facades\Landlord;

class TenantScope
{

    public function handle($request, Closure $next)
    {
        // If user is logged in, fetch associated tenant model
        if (Auth::check()) {
            $tenant = Auth::user()->tenant;

            if ($tenant != null) {
                // This will cause all models to be scoped to that tenant
                Landlord::addTenant('tenant_id', $tenant->id);
            }
        }

        return $next($request);
    }
}