Rental Grade Renovations - Contractor or DIY?

[Joe Fernandez]

I have a recently vacated property in Decatur, GA that needs some renovations.  I want to do a new:

• kitchen (cabinets, tiles floors, granite counter tops, backsplash)
• new bathroom (tub, toilet, vanity tile floor)
• Interior: refinish floors, replace a few doors, replace all outlets/light switches, patch and paint all walls
• Exterior: a couple roof and gutter repairs, and paint exterior trim/window/sofit/facia.

So its not a big renovation, mechanicals are all good.

So my question, should I find a GC to handle all this?  Do I need permits or are these just repairs? I've gotten a couple of ridiculous quotes ($50k+), and the reasonable $20-25k quotes keep waffling on me, like they just don't want to work.

Or can i do it myself, just buy all the materials and hire out each job to individual (probably unlicensed) guys that can do the work? 

If doing it myself, how are people handling the tax implications.  My accountant says i need to issue a w9 to request a 1099 for all work totaling more than $600.  If I go the DIY route the workers will not have 1099s, or will they?  How are people handling this?  I don't want to break any tax laws.

Thanks for any advice that can be provided.