(Business cards, licenses, tool trailers, equipment, etc.) 

It was only the request to transfer money through PayPal rather than a credit card that tipped him off to a potential scam. 

I’ll just give you an example: buy a duplex for 100 put in 20 sell for 200 then use the 100 for a fourplex that costs 400, raise the value to 600, sell and 1031 into something that costs 800, raise the value to 1M, sell, trade up, and on and on.

Commercial you will have to worry about build outs required by new leases and about how long with what kind of raises in rent you will need to do to keep the cash flow positive. 

Raising money for a great deal is also hard, if you don't have a track record or some major trust. 

I just raised my rents 2% this year and nobody complained. 

I then renovated the place using a combination of credit cards or asking for delayed payments from the contractors. 

The card is 0% interest for 12 months.

no, sets a bad precedence, not required to, get them a gift card or something if you need toMainly, how do I set expectations that the issue cant be resolved in the same day ? 

I had a tenant with me for over a dozen years, rented an SFR to him below market at $1,300, he took care of the place, did all the repairs, so I haven't raised it the first 8 years.