If I have not been able to sell the house, can I legally rent it instead?

You need to be somewhat careful here.  If you rent it out for a year, then I would argue that you are in contempt of court and doing so willingly because there is a greatly reduced chance that you can sell a house that has tenants inside (typically).  However, if it is a month to month tenancy, and the house STAYS ON THE MARKET, you're probably on safer ground. You're unlikely to be ordered to remain in the house - but that was one of the things you were awarded (i.e. its a good thing you're free to do or not do).

Note that evicting a tenant is not always as easy as it sounds and generally requires an attorney (eviction attorneys generally charge in the 400-1200 range for residential real estate as far as I am aware - i'm on the lower end of that spectrum, but higher than some others).