I'll send a paypal invoice shortly.

If the seller is willing to work with you and provide the documentation you need (i.e. rent rolls, tax returns, invoices on work done, etc), you may be able to work something out.

More than half of this invoice  shows tree trimming & cutting.

Invoices for repairs go on the HUD-1 on the initial cash purchase right? 

You have to go to court prepared, bring in your contractor to testify, have them bring in their estimates, invoices, log books, employee time cards, material lists, receipts, etc.

I buy a new pick up I drive it at least 10 years or more.I never have leased a pickup truck seems crazy from the math.I use to buy at invoice price, the dealers caught on about that so now invoice price numbers are pumped up leaving the buyer access to the true numbers muddle with false invoice prices.I would read Clark Howard on this topic very good read.https://clark.com/cars/eye-opening-truth-about-dealer-invoice-price/

Your concept of discounting is similar to a business invoice with terms like Net 0, less $100 5 days prior due date.I use popmoney.com to assist tenants in making timely payments and make past due expensive -- $150 late fee.I send a courtesy note the first time their rent is late:You are  late in your  rent payment and this memo is to remind you of the $150 late fee. 

This uploads data to a online cloud platform which you then can send invoices or billing with. 

Although I have no problem with a PM having his own company do the work, just gotta check up on the guy once in a while.And to be honest, we don't know yet if this PM is gouging or not, let's see some actual invoices.

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