You need to understand how to use their class and job functions extensively.  

You can always do a picketed 4' tall fence that won't make it feel smaller like 6' privacy fences do but still creates a visual barrier between the yard and the creek.Regarding the bamboo... you might also lose your backyard one day haha (not that it matters to your parents since they're selling).

Although @Charlie Fitzgerald sounds more like a hard money lender, I can relate very much because I'm less visual and more conceptual: show me the numbers, not the graphs.

If a property is 30 units versus 300 units, I'm assuming the property maintenance and tenant pool be a function of the area and property management in place.  

In addition, they have build in functions that you can put in your own assumptions.

House has no visual mold that I can see.

Better to outsource those functions until your consultant fees exceed the cost of salaries for equally qualified employees (a pretty high bar).You have a great roadmap, just be open to tweaking it as you learn what works and what doesn't.  

It has revenues, expenses, customers, vendors, and a marketplace in which it functions.  

Do whirlybird vents need to be installed level to work, or can they function if installed at an angle

9/10 times that only means the water is off in which case you buy it cash, get the plumbing functional, put a conventional mortgage on it with 20% of the purchase price and cash out the other 80%.