To leave the dream, you need to become a true succubus (or incubus, if your protagonist is male). In short, you need to talk to one of the jailers, then go to the queen with Rinny, fight the queen several times until Rinny admits defeat, then fight Rinny and win (or skip the fight).
Renovation to the dairy farm and Cassie's hideout can be ordered in Newark, at the hardware store. But in order to renovate the farm, you will first have to defeat the slavers who captured it. And in order to renovate Cassie's hideout, you first need to solve the problem with Don, who controls the criminal world of Newark. In any case, you will need a lot of money and a good level of skills.