"Dobles a la derecha" is a formal way of saying, "Turn right".
The command is grammatically correct.
The translation you are looking for is:
"The rental apartment is located on the ninth floor."
If you are looking for an answer instead of a translation, please comment on my answer! I'll replay ASAP if that is the case.
1. debemos
2.cómo
3.cometieron
4.aprendéis
5.come
