<prompt> Human: We had made a decision 5 years ago to buy a house for my growing family and move out of the tiny condo I owned. At the time the condo was 10k underwater from the housing crash, so we decided to rent it out until we got out from under it. This is the current situation:Monthly, the condo costs me 990 mortgage, insurance, taxes, common charges, sewer, Im paid 800 in rent, and so I have to make up the 190 difference each month. Ive been looking at it as an investment this way: Since the principle portion of the total expenses is 490, my 190 payment is ALL going to principle. As long as the housing market is stable or is growing the 190 payments I make are building the equity, which will eventually be in my pocket again when I sell. The risk I am taking is that if the market turns I will loose that equity. Ive since built up 30k in equity. Am I thinking about this rental investment correctly or should I try to sell the condo since Im not underwater anymore?Side notes:On raising the rent: The landlords I know that raise the rent every year have a high turnover and often loose out by having a vacant rental. My tenant has been very good and stable for 5 years, so I am not giving him a reason to look elsewhere. If I had a high turnover I would be without that income for a few months and may end up with a crappy tenant if Im trying to get it rented quickly. When they do eventually leave I will raise the rent to the current market value, which would be about 900 and still less than the total expenses mentioned above leaving me in a similar situation.On managing the condo expenses: I aggressively put extra to the principle, shop for insurance, and have refinanced to pay less interest on the long term.  <response>: I was in a very similar situation and sold my condo about a year ago. Im very, very happy I did. As others have said, losing money each month is not the best use of those dollars. Plus no longer having to worry about potentially needing to fix problems is a big plus. The other major fear you live with is your tenant moving out and the condo sitting empty while you have to pay 100 of the mortgage payment. I was able to talk my tenant into buying my place, which saved us on realtor fees. It took some time on my part to convince them, but the fact that I could give them a price lower than someone buying with a realtor plus the fact that their mortgage payment was very similar to the monthly rent got them on board.Overall, Im much happier putting those dollars I was losing each month into savings or other investments an no longer worrying about the potential pitfalls that could pop up with the condo. 