Hi Divani,
Here is my answer for your questions.
1. can i short term rent the apartment while being the tenant in Kuala Lumpur?
Ans: Sorry, you cannot rent the apartment when you're a tenant, because in Malaysia Laws when you rent this apartment you're not acceptable to re-rent to another person, even is 1 day.
- Is it leagle?
Ans: It is not legal !!!! This is very important ! You have to know, being a host in Airbnb Malaysia, we also need to pay income tax to our goverment. If our goverment or your owner know it, you will get big trouble.
So, hope you can understand~ Good Luck yay~
Best regards,
Jois