Retiree ready for cash out refinance to remodel and repair two properties, will I need a co-signer?

[LindamJ877917]

I'm a 71 year old retired homeowner with two homes and in the market to refi my primary residence for $120K cash out of equity to repair and remodel both properties for senior access. I've lived in my  primary home since 1982.  It was appraised at $232K in 2013, my current interest rate is 3.50% and my current balance is $44K,  my 2nd home is paid for and worth $75K.  My credit score is 670, my monthly bills are $1800, my monthly income is $2K and my assets are +$120K.  I don't want a HELOC because I don't want 2 mortgage payments/month and I'm thinking of using one of these propeties as a rental property in the future. Will lenders require a co-signer on the loan?  What usually triggers a lender to require co-signers on loans?