Is a foreclosure on a refinanced home different?

[Catia]

Is a foreclosure on a refinanced home different? I refinanced my home's full equity almost 3 yrs ago, cash out, I used much of the $ for home improvements, and some of the $ for other stuff, I also invested some of the $ into other property. Recently I moved to one of my other properties. The refinance is a 30 yr fixed rate-
I am in PA which allows for deficiency judgements, I am right now in unrecoverable debt, and will probably need to both file for BK and allow the foreclosure, or do I include the home in BK??? Does the fact that it is a refi change things?
I am here for support and info, things are so messed up right now, I am really scared. I was here before, about a yr ago, and I managed to pull out of the problems--but only temporarily. Now I am back and am probably gonna be here for the long haul.
I am not interested in short sale or quick sale type of stuff, nor in keeping the property. I have been down both of those roads and they did not work for me. I am exhausted, and willing to let it go.

[Joe Farmer]

If you give up that house in BK

there won't be a deficiency judgment because the whole mess will be discharged by the BK. And that refi has no effect on anything.

[Catia]

So what is the actual difference btwn a regular purchase money mort and a refi when it comes to BK and/or foreclosure? Could someone here spell it out for me?
What do I need to do 1st--allow it to foreclose and then file BK, or file BK and include the house? Again, I am in PA., which is a deficiency state, and also, no homestead exemption, but I can use federal-I have tone of questions.
I am trying to read here as much as I can, but there's so much, and I have so many questions.