From wikipedia:
http://en.wikipedia.org/wiki/Jefferson_Davis
Sources annoted at bottom.
A common claim but inaccurate. Read the letter that Davis sent to Lincoln introducing the commissioners and you will see there is no offer to pay for anything. No offer to negotiate anything that Davis didn't want to talk about. Nothing really but an ultimatum that Lincoln surrender to rebel demands and recognize Confederate independence.
But even if there had been such an offer, isn't that an admission that the Southern actions of seizing property and walking away from debt had been wrong to begin with?
Oh, and the Wiki footnote references the wrong page. It's actually pages 336-337.
Davis was a moderate only in that he was not a fire-breather. But in 1850 he was in the forefront of secession. He dominated the administration of the feckless doughface, Franklin Pierce, and did what he could to make sure that the Army was safe for the South. It is true that he would rather have been one of the Virginia generals rather than in the Richmond white house, but everything he did was for the Cause.”
In early 1861, neither outgoing Democrat President Buchanan nor incoming Republican Lincoln ever met directly with Confederate representatives.
In this particular case, Davis' emissaries didn't meet either Lincoln or Secretary of State Seward.
Instead they met a southern-born US Supreme Court Justice who was soon to himself join the Confederacy.
This justice talked to Seward, who lead him to believe than Lincoln planned to surrender Fort Sumter, South Carolina.
Lincoln's view, as he stated publicly, was that any instructions to him regarding secession must come from Congress, and that's who Davis' emissaries should address.
There's no record of offers of payment for any seized Federal properties, and the whole atmosphere was one of explicit threat of violence -- if Lincoln did not surrender Fort Sumter, it would be seized by military assault.
The key issue here is: what is the proper Constitutional method to secede, and Lincoln's answer then, as is ours today, was -- constitutional secession must be authorized by Congress.