The series is owned by Atresmedia. Check their official website for legitimate distribution channels.
In Spain and specific Latin American regions, (a free ad-supported streaming service) has a dedicated No Hay Quien Viva channel. You cannot select specific episodes (it runs like traditional TV), but if you just want the show running in the background, this is a great free option. No Hay Quien Viva Capitulos Completos -FREE-
If you’d like, I can help you search for current legal streaming links or write a summary of the show’s episodes instead. Just let me know. The series is owned by Atresmedia