Don't know about if you need to do a gift tax for 2014 for her but probably not. But when you sold it your cost basis is what she paid for it plus any improvements. You do not get a step up in value when she died. So you need to find out what her cost was, what she paid for it.
That's a problem. Parents think they are doing the right thing by giving the house to the child but it's usually not. Now your cost basis is what she paid and since you didn't inherit it you don't get the value on date of death.
