Also the treatment is not like that for termites where the chemical residue stays and is active for years.

Chemicals?

The major problem that we have is that our landlord also operates an appliance business in their back yard (which is super noisy and constantly smelling of chemicals and spray paint), and when we've asked for repairs, they simply send in their appliance guys who half-*** the repair job, and a month later it's broken again anyway.

Is it bleach everything and replace floors, is it some kind of chemical cleaning product like SCOE 10x on the floors and walls, ... 

A lot of times being a landlord it is about minimizing your exposure to liability.If a tenant or their guests or kids were to get hurt on the property, you can easily expect yourself in today's society to be involved in an very costly and possibly very long lawsuit.We advise owners not to leave on lawnmowers, ladders, weedeater's, yard equipment, or even cleaning supplies and chemicals.

When looking at investment property, pet odors smell like money.I bought one of these a few years back and was prepared for chemical warfare. 

Now when you walk it there is a very strong chemical smell and we can’t pinpoint what it is.

There are several electronic lock systems that are designed to be durable and handle harsh environments.

My words when talking to other investors may be more harsh. 

We estimate the average noncooperating Class C tenant takes us 15+ hours between filling out the forms for them, numerous property visits to get their signatures and documents, following up with overworked caseworkers an average of 7 times, etc.We debated about this post, hoping to create an open discussion and get feedback, but worried about being harshly judged without all the facts.