Congrats! You'll have a lot of time to get everything set up. Make sure that you get all of the legal paperwork and licenses in order while you're waiting for the babies to be born. Any supplies you buy like food, litter, cages, building supplies etc... are tax free and tax deductible once you register with your state. Plus, if you do this out of your home and you have a section of your house that is just for the rabbitry (like a shed or even a spare room) then you can take a home office tax credit. Make sure you get your EIN (it's free), register to collect taxes (should also be free), and you register with your state. You'll need to decide if you want to be a partnership or a LLC. And, if you are going to be operating under the name Fine Line Rabbitry then you may need to register a fictitious name with the state you live in. I know that Florida requires it but I'm not sure about Wisconsin.