Business & farm

Two experts are now advising me that the scenario I described is a no-go.  I believe you are both likely correct, but can I ask a question regarding basis being the only allowable deduction?  If I bought land 10 years ago for $20,000 and I donated it today to a charity, when it's appraised at $100.000, I can only deduct the $20,000 basis?  That's definitely not what charities are telling doners.