Vacation rentals in the Casco Viejo neighborhood of Panama City, Panama, are what we call "short term rentals". No one better than Los Cuatro Tulipanes to help you out. They have a really nice building with several apartments at Las Monjas, by the Grandclement ice cream shop. It is super well located: Central Avenue between 4th and 3rd. It is easy to find them in the internet and they have there photos, description, prices, contact, etc.