What would be ideal Cash on Cash Return when housing Hacking

[Tristan Romero]

My girlfriend and I are going to purchase a Duplex in the general Sacramento Area of CA. Being that I am in California and its not the easiest to cash flow what would be an ideal target for my Cash on Cash return to be?  I know that its okay to be cash flow negative at first but when analyzing a property I am not sure what a general percentage I should be looking for. Thanks in advance for any and all help.