My sense from term-perm loan is that all costs/invoices need to be detailed prior to build with little to no room for negotiating cost savings as you go along. 

Are all my invoices uploaded to my owner portal?

Also, I want the original invoice for all work and no markup.We specify which tradespeople the property manager will use.

Note, the money for rehab isn't given upfront, usually it's after a certain time-period or scope of work is completed and all invoices/receipts are submitted to the lender for their approval and disbursement. 

Not that long ago, most Americans with a sixth grade education were expected to be able to write invoices, negotiate an installment sale, and prepare and record a deed.

I boarded up the window that night, then had the glass replaced and gave him the $95 invoice. 

You will only have to pay them at closing with an invoice they provide at closing.

I am required to have all of the documented info, receipts, invoices etc. in case they request it; from what I recall I don't think they need it upfront.

the tenant's excuse was that her lawnmower broke so I paid someone to do the yard work and paid the City's fine and then send her an invoice to pay me back within 10 days and she did.  

Invoice client for $5,000 - Receive check, cash etc4.