We build a business with Verifiable Credit backed by Actual Transactions, Invoices, Bank Statements and Tax Return.The time line for building A++ credit on a 5 years old aged corporation is approximately8 weeks.

The Director sent me the electronic invoice.

There's a lot less for the tenant to dispute if you have an actual invoice from someone else for the cost of repairing the damage.

If the tenant called regarding a repair and said I didn't call them back, I can prove that I did, and I would have the Invoice or receipts from the handyman or ourselves, (if we did the repair) with us, showing the date of the repair, etc. 

Ask for receipts, invoices etc.  

Perhaps its a system issue for us, but we currently just aren't set up to efficiently track & invoice and communicate to the owners as expenses are incurred. 

I have heard of others doing "invoices" to be paid on flips or even using liens which Im not really sure how to execute.

With the large spreads you are able to secure from Sellers in the current Buyer's market you are also able to assist the Buyers you secure with additional incentives (down payment help, help with closing costs, and even the ability to lower their interest rate).(3) Next - Through the use of a unique "Invoice" the investor is able to relinquish his interest in this deal which allows the Seller and Buyer B to go into contract directly.

It handles tenant invoicing really well to.

They may be able to find the original invoice and see if more of this laminate exists.