Hello Jason. To rent your apartment by day , you must have a touristic licence . To rent your apartment more than 31 days till 11 month you can do it without a licence. Means exempt. Thats why these properties are a little bit cheaper than the properties with a licence . Summing the prices by day in a property with a licence, even with a month discount , the one without licence will be alway much cheaper. Of course is safe to stay. You can also read the comments and reviews before deciding . Regards