Legal Question in Real Estate Law in Washington

I think I'll just answer the first part of the question - as the second question is a little out of my area (though I belive the answer is generally that the debt is seperate - unless, or until, the debt benefits the community). As for the house...that is someones seperate property going into the marriage - and it will continue to have that character throughout the marriage unless certain things occur: spouses often quit claim their interest in the house to the community (not something I agree with - but people often do it); also, if the other spouse starts making the mortgage payments or pays for home improvements with their seperate funds they create a lien interest in the home; the other spouse could also gain some interest through the use of community funds to pay for the home - if the seperate owner wants to keep the property seperate they should only use seperate funds to pay for/ keep up the home.