Any way to get a short-term tenant in Oakland?

[Diva Deeva]

I am planning on selling my Oakland condo in 1 or 2 years and would like to have a short-term tenant in the meantime. 

I don't want to sell yet since I am moving to a temporary job and have only owned for 1.5 years.

My unit is covered by rent control and just cause evictions.  I don't want to sell my condo occupied because it won't necessarily generate positive cash flow for a new purchaser based on current market rent. 

Is it illegal to have a lease that does not renew?  Is there any way to do a sublet agreement that is temporary? 

Or, if I want to sell the condo unoccupied do I have to wait until the tenant moves out, which could be never?