Sale of Residence

http://www.irs.gov/businesses/small/industries/article/0,,id=98921,00.html

Rental Income and Expenses

http://www.irs.gov/businesses/small/industries/article/0,,id=98895,00.html

Like-Kind Exchanges - 1031 Exchange

http://www.irs.gov/businesses/small/industries/article/0,,id=98491,00.html