My fiancé and I just bought a condo and of course 2 weeks later the guest bathroom lights and sockets stopped working. We have no idea where to start and what to do, but we do know we are not trying to spend hundreds of dollars on something that might be so simple to fix. If anyone has any ideas I would greatly appreciate them.

Assuming you've already checked the circuit breaker, make sure there is not a GFI (Ground Fault Interrupter) that has tripped. It might not even be in the same room. Just look for any other outlets that are dead.

Since it happened so abruptly, I'd be willing to bet it is something simple like this.
WallyH