Having said all that, I do think office space can be a good investment if you get a good price and it's in a good location.Certain businesses will probably always need a professional setting that is not their home to meet with clients.

These are professionals with additional training and a stricter code of ethics.

You may want to reach out to your accountant for verification.Also form 3115 is complex in nature - I would definitely leave the completion of the form to a professional. 

My husband and I are located in Mesa, Arizona and would like to network with local professionals.

Big thing is going to be sure you do your annual filings (should be short and simple other than taxes which you should have a professional filing for you anyways) and keeping your personal assets (cash) separate from your business assets.

These are professionals with additional training and a stricter code of ethics.

This method has been proven successful both personally and professionally.

Obviously I know learning how to do this stuff will save me tons of money down the line, but I'd also like to maintain a professional feel to our house, and have professionals work on anything broken.At the end of the day, is this ok?

I am neither an attorney or a tax professional. 

You will not find a lot of young professionals there.