Is it possible to switch from a conventional loan to a FHA?
The max loan to value on FHA prior to adding in the upfront mortgage insurance is 97.75%. If your loan was originated approx April 2009 or prior you should be able to use the Home Affordable Refinance Program (HARP). If you had mortgage insurance when you originally purchased, you would want to go through...

Can I transfer the name on my mortgage from my ex wife to me, when I refinance the house?
My understanding is that you could not use an FHA streamlined refinance but you could use an FHA loan. If you have equity in the property then an FHA loan would most likely not be the lowest cost alternative unless you were using a streamlined product because the mortgage insurance on FHA is more...