Just go to your town's development office and get a re-roof permit for the small area that needs to be changed.  

On my rare moments of down time I enjoy photography, traveling, college football/basketball, petting llamas and talking to my dog about the emotional benefits of barking less.

We are interested in multifamily properties and are playing with the idea of buying something near a college campus.  

Make sure they pull a permit.

As far as background, I am a college student still, work two jobs and am a student of REI as well!

Back to that in possibly another post.So given the scenario above, where my partner would have his GC license and can pull the permits, between the two of us have a good handle on high quality materials and where to source them, the general knowledge of the order to get things done, dealing with inspection etc...Is there a good way to gauge how much we could collectively build the duplex for?

If you have a college degree in engineering, congradulations.  

I got a college degree in business that emphasized real estate.  

Essentially making a 3 bedroom useless for college rentals.

If you can locate a home with well defined bedrooms and baths for college kids near the college - great!