My first flip, who should buy materials?

[Lor Fara]

Hi, just went in escrow for my first flip. 

 I’ll work with small teams by area as opposed to one GC.   Should I ask the contractor quotes for floors, paint, landscape to include materials?   Some are saying I should get it.  I don’t have a truck so for some stuff not an option. 
Also if the receipts are in their name will I be able to deduct them as an expense?   thank you.