Short and long term capital gains tax

[John Kerr]

Hello I am wondering if anyone knows anything about if I have to pay capital gains tax(short term or long term) if I sell any of my rental units. I have lived in 2 of them over a year and the third one for close to a year.(I have to check some records to figure out the last one). I was told I do not have to pay any capital gains tax if I've lived in them over a year. Then someone told me I would have to pay long term but not short term. Any info on this subject would be greatly appreciated. Thank you. John Kerr