Should I rent my apartment before selling?

[Galit Garsiel]

If I sell my apartment and live in a rented apartment while looking for a house to buy and flip, should I rent out my apartment in the meantime?

I mean, would it be a problem, showing potential buyers the apartment while the renters are in it? And it would have to be short-term, just until I can find the right house to flip. Renters usually want to stay for a whole year. 

I can't buy a house/apartment until I sell mine because I don't have the money to buy an apartment.