Q1:what does "the buildup of the country"mean?
“Essentially. It doesn’t add up otherwise, not if you really dig into the expenditures, the revenue. Family lore says gambling—they liked to gamble and they were lucky. And they were smart businessmen. Then the war, the buildup of the country. All of that, yeah, but gamblers need a stake.”
“You’re sure it was the dowry.”
“It’s logical. I want Tricia to take a look, to analyze, and I want to hear back on James Fitzgerald. It adds up, Abra. It’s in the walls, the stone, the glass, the gables. They accounted for it, in their own way, Roger and Edwin, because they considered it theirs.”Q2: what does "all of that"mean?Q3: what does "need a stake"here mean?