Sell or hold Chicago south side rental?

[Sarah K.]

I purchased an apartment in the Chicago area near my university campus while I was studying back in 2006. Of course they gave a full-time student with no real income a mortgage with just 20% down payment back then. Anyhow I've held onto this apartment since then and it's been leased. But each month I have to put in cash to account for all its expenses. I tried to sell it two years ago but I had to put in 10-15K to close to deal. At this point I paid down its mortgage enough to probably be able to sell it without having to put extra cash. Note that we bought it for 210K and now it probably won't bring in more than 170K. Interest rate is fixed 7%. What would you do?

PS refinancing is not really an option because I live abroad, work abroad and it's an investment property.