Contractors and Keep Control of Expenses

[Ram Hernandez]

I'm planning on doing my first flip soon. 

After my contractor and I agreed on a deal to do my flip. I'm planning to give me my credit card, so he can buy all the materials for my house rehab, 

I think in doing this way, I can keep control on what I pay for materials and receipts. 

Is it this system sound correct to do it?