Everything Paige said and a few more.All vehicles must be licensed, tabbed and operableNo water beds, pools, portable heaters, portable dishwashers, portable clothes washers or dryers shall be used on the premises without prior written consent of agent/owner.No dust, sand, dirt, rubbish, coffee grounds, feminine products or other foreign material shall be flushed or washed down toilets,sinks, or wash basins.

I also let the tenants know and not to pour bleach down the drain or flush hygiene products (which they shouldn't flush anyhow).

Having been in the Navy and to some places where hygiene and food safety is more of a suggestion than a rule, I think it's something of a cultural thing.

What other ways can you instruct the tenant to keep better hygiene?

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?

Reject them because of their hygiene, or because you were unsatisfied with their references, or they smoke.

This house does have a feminine touch but I think its fine. 

If somebody put paper towel or feminine products down there, I would hold them responsible.The next question is whether or not the tenant was obligated to notify you in a timely manner that 1) the toilet was continuously flushing and/or 2) that it was leaking after it clogged.For #2, it sounds like they notified you soon after they noticed.

People who have been driven from their homes need things like dry goods, baby formula, water, diapers (for children and adults), toiletries, feminine products, blankets and jackets (cold weather is upon us), undergarments, shoes, gift cards for goods and groceries etc.The thing most people don't realize is that those who have lost their homes are looking at 2-3 years before they can rebuild, assuming they had adequate insurance to even rebuild at all.

"Executrix" is the feminine form.