@Vincent S.There are two credentials that most sophisticated tax professionals have.CPA(Certified Public Accountant) & EA(Enrolled Agent).CPA designation is the more prestigious of the two.There is no designation to indicate that he/she is a professional is 'real estate tax'.I would have a casual conversation with the purchases that you made and how the rental is performing. 

Yes,A builders Risk policy is a specialed policy designed for a building under construction. 

You’ll find plenty of friendly, knowledgeable people willing to respond to your posts.There are a few self-contained guides that you can access here: https://www.biggerpockets.com/guidesI really like the alerts feature that can quickly guide you to current topics that might interest you: http://www.biggerpockets.com/alerts

Finding someone to do this for you could be relatively expensive, so best you contact the city, find out the process and handle yourself.Once you have city approval, you can then hire an architect to design the new structure, or buy plans online.

Often people would to get new features not because the old one stopped working.  

You’ll find plenty of friendly, knowledgeable people willing to respond to your posts.I really like the alerts feature that can quickly guide you to current topics that may be of interest: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

This is the DP2 - The terms that are designed where someone/something else is paying for the rest.

For example, if you are looking to connect with other members near you, want to learn from people in a specific area you’d like to invest in, or have a desire to find people interested in certain topics, you could use the search feature here: https://www.biggerpockets.com/search/usersI really like the alerts feature that can quickly guide you to current topics that may be of interest: http://www.biggerpockets.com/alerts

Use a designer experienced with short term rentals. 

There are some pretty nice discounts on many products and services offered as Perks to BP members that you might want to check out: https://www.biggerpockets.com/perks/proI really like the alerts feature that can quickly guide you to current topics that may be of interest: http://www.biggerpockets.com/alerts