Lets say for example your contractor knows he has you on your heels so he puts an outlandish mark-up of 25%, for handling, off-loading, storing, INSURING,  and warranty on the material.So you end up paying:$7,000 x 1.25 = $8,750 for $7,000 worth of material.  

If it's painting - I'll buy paint myself.If it's plumbing - I'll go with him and buy all he needs in plumbing store or Home Depot or whatever.

I have just set up my first real estate investing company in Washington state and among the many things I had to do to get going was registering with the State Department of Revenue.

If it wasn't so ingrained in me to never have store credit cards, I'd probably get theirs! 

The health and human services department may have a say, as well as the local city/county planning department, and the fire marshal.Find out what property modifications would be required.

If you are not local or even if you are local, buy the items online or over the phone and let the GC pick up at the store if they can't be delivered.What I fear from your question is that you are looking to give up responsibility for your flip to others.

The permitting process is detailed on their website: https://www.longmontcolorado.gov/departments/departments-a-d/building-inspection/permitsYou tell them what you want to do, and they'll tell you if you need a permit for it.

Plenty of those types of options in the grocery store...fragrant sticks.

You can take out as little or as much galvanized line as is convenient or that makes sense to you.The one thing I will say about PEX is that you should buy the fittings in bags of 50 online, you're get a WAY cheaper rate than buying them in any walk-in hardware store.

When I had specific questions, she was unable to answer and had to call down one of her colleague in the respective department.