mortgage rate drop today, insane!
If your rate is not locked you would get the going rate. If your rate was locked you will need to check with your loan officer to see if you can get a better rate.

how long is a pre-approval typlically good for?
Pre Approval is good for 3 months. You must close within those three months. This is because your credit report is only good for 90 days. Call me at 480-535-4620 with any other questions. You can also apply online @ http://bit.ly/312SBUf

Refinancing a SFH
I may be able to help. I have done these in the past. I would have to look at assets, LTV, and Credit. Let me know if you would like to have a conversation. I am in Gilbert Az.

Are FHA and VA loans better than conventional loans?
VA can go to 100% to 500. FHA below 580 requires 10% down. The rate will be higher. No chance at conventional with those scores. I am in Az so email me with any questions.