Cash out Refinance to pay off debt

[Dustin Newton]

Have some bad debt from building on to my residence. I owe 50k on a 125k rental house that I plan to pull the equity out. The current payment is 700 and the rent is 850. The problem is that the interest rate now will become  6.35%. The small amount of cash flow will be the same because I will be using a 30 year fixed rate. 

Should I do the cash out or leave the investment alone?

I did most of the additions to my home with cash but had to use about 17k in credit card debt. I owe 99k on my home now and should be worth 300k. 

Thank you ahead of time for any advice