Be careful and don't haggle. I was offered 92%, countered with 96%, was asked to meet in the middle at 94%. I rounded up by 20 mil on a nearly 7B trade and Leaf said no longer interested. Then I said fine, I'll come down the 20M to your 94% asking at which point the "risk wasn't worth it." Don't make offers if you don't intend to keep them. This is acceptable as it's their money, but seller beware.