Adding a spouse to mortgage

[Anthony Nguyen]

Our townhouse is in my wife's name only on title and mortgage.  I would like to add my name, and eventually refinance the home in my name using my credit and income.

 Questions are:

A) How do I add myself and record it with the county? Grant Deed?

B) How long does it need to season on title to refi into my name? 12 months?

Reasons are:

Wife is not working right now, and has blemishes on her CR. The interest rate is set to adjust up from 2 percent.

Thanks in advance.