Not really. You can transfer funds to another QOF while continuing to defer your capital gains, but the timer would restart upon transfer to the second QOF. On the other hand, you can reposition assets within the same QOF, but sales are subject to regular income tax consequences when they occur prior to fulfilling the 10-year holding period. The only way around this is to do a tax-advantaged transaction inside the QOF itself, like a Section 1031 exchange.