when you make a decision on a investment, you should not look back to the price you paid. Your decision should be based on the future price/gain on the investment. Put the number together, and if the investment is a good one, keep it. if not, cut it.
In your case, you should look at this from many aspects: future price, cash flow, your financial situation, readyness as a landlord ... etc.
No one can give you good answer without knowing all those aspects.
Here is a list of questions you can try:
1) Do you have to buy a SFH? if yes, move to next. if no, stay put.
2) are you ready to be a landlord? if yes, move to next. if no, sell it.
3) Do you have positve cash flow if rent out? If yes, move to (5), if no, next.
4) can your financial situation sustain the loss for many years? If yes, next, if not, sell it.
5) Do you expect price come back? if yes, refinance it and keep it. if no, sell it.