Hello Rossma,
You should ignore the first answer you've received, as the agent obviously didn't understand your question.
You all should submit this situation to either one attorney representing all of you, to facilitate such a transaction, OR, one attorney for the brother, and one attorney for you and your sister.
You also need to establish a present day value. One way to determine the value would be to hire an independant appraiser, or for you each to hire an appraiser and average the values they've arrived at.
The numbers you show - 6% and 2% are probably a tad too high, but there will probably still be transfer costs, which will include preferably an escrow, and a title policy.
In addition to an attorney(s) you should consult with a tax advisor, as the two of you may be exposing yourselves to a taxable short term gain.
Good luck in sorting things out to your mutual satisfaction. - Wed Nov 18 2009, 10:56