You can purchase a cheap camera with a built in cellular connection: Cheap 4G Camera All this needs is a SIM card.

Also putting a business card and flyer on the door could work.

After all rape is just the word of the victim that it was not consensual sex, breaking and entering, well the door was already broken, every theft, every credit card fraud, well the owner said I could. 

Green card/Student/etc etc permits/visa. 

Dedicate one checking account and credit card exclusively to real estate.

I also use their virtual credit cards which enables me to assign a card to a specific person, like the cleaner for my STR for example, so when she runs a charge, it automatically drops into the right account in terms of categorizing my expenses.

.* Additional Charges: Jenny requested that I deposit on her checking account an additional $20-25k for her to purchase furniture, which I refused because I thought it was very strange, opting to give my card # instead.* Work Quality: Jenny never showed up to the house, she sent 2 people instead, she never mentioned she would not show up herself, she never asked for approval to send two others instead, they did not complete the job, and there were multiple unauthorized charges on my card.* Receipts and Expenses: Once I brought to Jenny's attention that we were 20k above budget, she refused for days to give me the receipts, saying that I needed to give her my credit card statement first.

BTW there is a free trial and the Starter monthly plan is $119.It also allows you to search through consumer information such as property owner "credit worthiness," Credit card usage, buying power, age, language, family members in the house, and many other fields that are above and beyond property characteristics, which is unique.

FYI, it has a free 30-day trial that has all features and doesn't require a payment or card to start using.https://www.rentalhero.io/

Can you pull the cash off the business credit card?