Or can I get away with zero exterior photos? 

This video is a great start and includes a lot of sample images (good and bad).

When I first started, they said I would get results if I just followed their instructions and got indoctrinated in the principles of mindset.They told me, that people actually don't learn from books, courses, sermons or watching videos, but by having a "relationship" with a coach or mentor.   

He has tons of videos on each country and the viability of the asset for people buying internationally.

An agent sent me a video tape of a fourplex in this area that made it seem pretty good.

can I get away with dollar tree trash cans?

FBI: Foreclosure Rescue FraudThese con artists convince desperate homeowners that they can save a house from foreclosure if the homeowner deeds the property to them and pays an exorbitant fee up front.https://www.fbi.gov/video-repository/newss-foreclosure-rescu...18 U.S.C. §§ 1014, 1343, 1344, 1349, 1961, 1963 (2024).18 U.S.

Watched some You tube videos about some ways, specifically creating a property LLC with WY LLC being a member manager LLC for the property LLC. 

I would also spell out what progress reports/pictures and/or videos should entail.  

You can get away with using 5% for Class A tenants, but we use 10% for Class B and lower. 3) Tenant Payment Performance: you didn't mention this, but it is important!