1) Douse entire house with gasoline (or incendiary of your choice).
2) Strike match, toss, run.
3) Collect insurance payout at last comp, sell raw land (after smoldering stops).
Alternative method –
Materials: 5 drums of crude oil, shovel, day labor
1) Dig large hole in backyard
2) Pour oil into hole, cover loosely with dirt
3) During open house, begrudingly disclose “problem” of black gunk seeping out of the ground, offer small discount to potential buyers as a landscaping credit…