Final answer:
The $3,000 of Lenny's Landing's unrecaptured Section 1231 losses will be recharacterized as ordinary income, reducing the current year's gain. The remaining $9,000 of the gain will be taxed as long-term capital gain.
Step-by-step explanation:
If Lenny's Landing has a net Section 1231 gain of $12,000 for the current year, and there are $3,000 in unrecaptured Section 1231 losses from the previous five years, this has tax implications for the current year's gain. Under the Section 1231 tax treatment rules, the $3,000 of prior losses will first reduce the current year's gain. Thus, the $3,000 will be recharacterized as ordinary income, which essentially recaptures the loss that provided a tax benefit in the past. The remaining $9,000 will be taxed as long-term capital gain, assuming there are no other complicating factors such as additional gains or losses.