(a) A transfer made or obligation incurred by a debtor is voidable as to a creditor whose claim arose before the transfer was made or the obligation was incurred if the debtor made the transfer or incurred the obligation without receiving a reasonably equivalent value in exchange for the transfer or obligation and the debtor was insolvent at that time or the debtor became insolvent as a result of the transfer or obligation. (b) A transfer made by a debtor is voidable as to a creditor whose claim
(a) A debtor is insolvent if, at a fair valuation, the sum of the debtor's debts is greater than the sum of the debtor's assets. (b) A debtor that is generally not paying the debtor's debts as they become due other than as a result of a bona fide dispute is presumed to be insolvent. The presumption imposes on the party against which the presumption is directed the burden of proving that the nonexistence of insolvency is more probable than its existence. (c) Assets under this section do not include