I am reading several books that seem to be popular/recommended - of course, I believe they were written by the creator of this website, so naturally they would be recommended by this website - and I am trying to decipher whether they are universal principles or things that worked at that particular time for that particular individual.As far as @Henry Clark 's suggestion that I narrow my focus to exactly what I can do now - I appreciate that perspective and will not bang my head against the wall about this topic.

The house smells like animalsLocal inspection company says house should be 75% empty so there is clear view of floors and walls.

Little things like the rower, lush wall and cute cow footrest.

However, there is a commercial duct running behind my bedroom wall that I strongly suspect is being used in violation of the building code.

Tenant paints all walls black6.

But in terms of cash flow I like this more than an EV charger or renovation.

Not moving any walls or anything crazy.  

I know that cities/counties do not give approvals for smaller things, like dry wall installed before electricals are  inspected.

So if you have the walls up and floor in, you may have to pull sections of flooring and drywall to expose plumbing for inspection.  

Is that easy to do and keep doing every year or will I hit a wall?