May she rest in peace. Pole to the family.
She must been too close to the hubby to live without him - I have heard of cases like this, where a couple are too close that one can hardly survive the demise of the other.
May God give the family the strength to carry on. When you come from a closely knit family and then you lose both parents in a span of six months - no matter how old you are - it might be too much to deal with!!!
Never count on making a good sale. Have the purchase price be so attractive that even a mediocre sale gives good returns.