I live alone and have one extra room that I am renting out during the summer. It is a single-bed room close to San Juan beach (15 minutes walking), available for short stays.
I work from 8 to 6 and spend a lot of time out of the place, so you might not see me a lot.
The appartment is on a first floor and has a big outdoor terrace and a big living room. The building has an outdoor swimming pool.
Feel free to ask for more info if you are interested :-)