Cash Out Refi if I add a Co-signer?

[Mark Schumacher]

I currently own an investment property worth about 400k and owe 214K. I've owned it for 11 years. I have good credit but my last several years of income have been spotty/low as I've left a w2 job and went out on my own. Might it be possible to do a cash out refi to 70% loan to value (say 280k) if I add a cosigner? Also, might there be any other options to extract money without selling with low/spotty income? Thanks for your insight!!