Others have been split into separate units with their own kitchens and utility meters.

Or is there a way to utilize my existing LLC, but to have a specific carve-out unique to this (and future) partnered-properties?

If you get the right people renting, like a business that stores material, its easy money. 9/10 people will want to use it as their personal workshop or to work on their junk cars, avoid them.

I would line a reputable roofer up, get a materials list and just demo it yourself. 

Rent for all three renters would include utilities.  

I have access to quite a few off market deals and plan to start utilizing my marketing for my own investment properties to help get others into properties as well.

The package provided by the owner only listed monthly expenses of $415 (not including taxes, insurance or utilities).

and need the utilities on.  

@Bob Okenwa Thanks for the response Bob, I have heard of many other investors utilize 0% credit cards effectively for rehabs, and I do like that idea, I just have to make sure I have a solid plan to pay them off, like you said.

You can utilize up-to $25,000 of passive losses to net against your other income.