I attribute this to a lack of understanding of litigation, the claim participants and objectives of the parties (particularly the plaintiff's attorney and insurance carriers). 

Learn by zoning the attributes- setbacks, special use or Conditional use potential, learn the processes, 5. 

They say Net Income = Operating Income - Taxes - Interest.So if someone owns multiple properties, in theory we should be able to attribute how much you owe in taxes for every property individually?

I have been VERY successful at doing that (as have others I've spoken with), and I attribute this to doing the things I mention above.

I think it has some positive attributes but pricing seems to be a bit all over the place when I look at other listings.

Here are some additional methods to help you find off-market deals:Networking: Make connections with other investors, real estate professionals, and possible sellers by going to regional real estate meetings, networking events, and industry conferences.Direct Mail Campaigns: To connect with homeowners in certain neighborhoods or with particular property attributes, create a tailored direct mail campaign.Driving for Dollars: Identify foreclosed or distressed properties by physically driving or strolling around neighborhoods.

We get lucky sometimes in our investments and then we forget that and attribute it to our own skillfulness.  

Also, the higher costs are also attributable to a lifelong benefit over that of a temporary (20-30 year term). 

In regards to your comments on Portsmouth, I would argue that most pre-gentrification areas have the same attributes you listed.

While some of you might be doing well with Airbnb, attributing it to the right timing or location, not every story is a success story.