No body is immune from this junk. 

We target our rentals for families looking for their own space in a detached SFH, this has kept us mostly immune from MF rent influence.

Encourage them NOT to flush the kitty litter down the toilet.It's a delicate situation but many pet owners do become immune to the odor their pets cause.Gail

Seller is either impervious to, or immune from, guidance from her/his realtor.

My question is, what if the tenant(s) does not have a good hygiene hobbit and results a pest infected property, would LLs still be responsible for this type of issues?

You become immune from employment issues and the PM takes that responsibility.In Calif, 16 or more units REQUIRE an on site, 24/7 manager by law.

What about mobile homes sold as an automobile with the title?

Tile is among the least inhospitable surfaces to multiple drug-resistant organisms/superbugs, and if you work in a hospital or a nursing home, you've seen people die of superbug secondary infections, and you don't want to bring them home to your kids.Medical professionals also tend to put a lot of faith in chlorine bleach.

For context, this place and the other calc I posted in another thread are in a very desirable, residential area next to an Ivy league school and all the grad school- the tenants (I was one a few years ago) are very high quality, its largely grad school/professor/staff rentals, and the home values historically have been largely immune to changes in the housing market- and probably as such, they've gotten really expensive.

I have seen payouts well over that for automobile injuries.