If you and your partner own the current property as tenants in common then that property is reported on your individual tax returns. 

Im located in Phx,Az and its common here to still see empty dirt land in prime areas of city, as an example, my father who knows next to nothing about real estate purchased a 7k sqft gated dirt land  in the city 3yrs ago for $35k cash, was planning to invest in it but it was too much hassle for him so recently he sold it for $140k .What's a good way to find good deals on empty dirt land  in the city or close by, does mls offer this search option.

This is very common.

Also, with your $700 example, I think you're conclusion doesn't cover the most common scenarios.

Must be kept on a short leash while on grounds or in common areas.

These are common things I see buyers overlook when analyzing.

Breakfast events are common in my area. 

I believe unpermitted ADU's is extremely common in Oakland.Does anyone have experience with the Oakland ADU Amnesty program?

I think this is the most common issue people have when it comes to investing in real estate whether you're a new investor or experienced.

More common at the moment will be rates in the 8%-9%'s.