I've listened to tons of podcasts, know my market, and am finally mentally ready to pull the trigger.

IMHO how you differentiate your vacancies from others out there will be the determining factor. 

Determining ARV is an art and a science - you definitley get better with practice and tools.

In those instances, did they dismiss cancellation policies or keep them intact and let the hosts determine the policy?

The neighbor on the other side of the shared wall is reported to have a mental illness that causes her to scream obscenities at all hours of the day and night which obviously is making my tenants upset and will make it impossible to keep long term tenants.

@Hanah Frickers Best to look at the county exemptions to determine if the tax is unavoidable. 

I would be more concerned about determining the status of the key systems, e.g Roof, electric, plumbing, Hvac e.t.c.

Case law has determined that a property owner may have an ability to assess the total value of a property but doesn't hold any special qualifications to determine the split between land and building.

The predict the future product, but still apply past data to determine the value.  

I have partners and professionals with my MFHs, so that will be determined later and probably handled differently.)