can i lock in my rate upfront and is it higher than floating?

<p>what lender does what when locking in a rate<br/>are they lower if you float<br/>when can you lock in<br/>is there a difference between a purchase and a refinance<br/><br/><br/><a href='https://www.ddamortgage.com/blog'>https://www.ddamortgage.com/blog</a><br/><br/><br/></p> <p><a rel="payment" href="http://www.ddamortgage.com/blog">Support the show</a> (http://www.ddamortgage.com/blog)</p>