gistfile1.txt

 $client = $this->Clients->get($id, ['contain' => ['Contacts', 'Contacts.ContactTitles', 'Contacts.States' => function($q) {
            return $q
                ->select(['abbreviation']);
        }, 'Contacts.Countries' => function($q)
        {
            return $q
                ->select(['name']);
        }], 'joinType' => 'LEFT']);
        echo count($client->contacts);