More common is you move into bigger, more expensive homes that you buy, or perhaps downsize into a home without a mortgage.

I'll throw in my 2 cents on common differences I've seen in my career:CDFIs - Because of their subsidized financing structure, they have the ability to be a low cost lender (and sometimes provide grants).

If they are on the deed, the property is owned as 'tenants in common'.Is there a tenants in common agreement?

On the OR Coast the regulations have grown 10X in the past 5 years, but there is still significant opportunity, particularly for initial owner/operators. 20%+ CoC is still quite common for premium Coastal STR's. 

For example the license should not only have a cost but also require at least some compliance training targeting some of the most common issues/complaints.

A mortgage lien being the most common one.

While this is not common, its also not uncommon. 

So the major issues in a house are a foundation issue or a structural issue, the next tier down would be a mechanical issue like Electrical, Plumbing, HVAC, then roof - which isn;t an issue a new roof is very common in a fix n flip, and then the outside facade: Brick repair, driveway repair, brick pointing. 

No money down is out there but it's not common and comes with risk

Your neighbor s as Sean mentioned, have a lower tax bill likely due to the fact that they live there and there are laws that prohibit the tax assessor from raising the property values more than 3% per year when it's your primary residence okay, it's also fairly common for your tax bill to significantly increase in the tax year after you purchase it.