Think of the worst case scenarios of what can go wrong and are you ready to handle that.See if you can buy time. 

Yes, this is quite a common practice for professional PM companies.

I initially thought that variance was only to change from 2-->3 units for example.Regarding finishing basements without bedrooms, in your experience is it just hoops that need to be jumped through/permits needed, or are there scenarios where you could be denied/not approved entirely?  

While there are definitely house hacks that have allowed owners to live for free and show positive cash flow the current interest rates and prices make those less common.

I don't know your market at all, but it's common for neighborhoods next to the hospital to not always feel safe to out of town nurses--- so just know proximity isn't always the main point.

Eviction and foreclosure are two common real estate processes where you always want to use a lawyer from beginning to end.

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

Both common area TI and unit specific TI.  

Different platforms use varying data sources, algorithms, and criteria for comps, so discrepancies are common.

This is so common.