So far, no problem with moisture or other (although scuffs do show more on the whitish Coventry Oak, also ordered online.

I live in dry Colorado so basement moisture isn't my area of expertise - but here are a few things to consider.

With hurricanes, the extreme moisture and humidity and heat, lets not forget the heat.

I've seen some videos on youtube where someone recommend a tar like substance to fill those holes and prevent moisture getting in.

Also, people with sufficient funds will leave these areas and the area will go into decline.Climate - Properties in areas with hard freezes and excessive moisture will tend to require more maintenance than in milder and dryer climates.Property cost - There is a tendency for new investors to choose locations with very inexpensive properties.

Front load washers require that they be left open after every load so that the moisture can dry and not turn into mold. 

I would go with a solid surround as the grout on the tile in a rental may give you problems either letting moisture in or with tenants not keeping it clean.

This paper backing is a vapor barrier and will trap moisture in the attic and you will have mold from the moisture trapped by this.  

Here is what my standard lease that I picked up from the internet and use with my rentals:(2) Repairs that Tenant will Pay Entirely: Tenant will pay Landlord or any contractor Landlorddirects Tenant to pay the entire cost to repair:(a) a condition caused by Tenant, an occupant, a member of Tenant’s family, or a guest orinvitee of Tenant (a failure to timely report an item in need of repair or the failure toproperly maintain an item may cause damage for which Tenant may be responsible);......Appears it includes failure to timely report as a cause to make tenant pay.I also have a Maintenance Addendum that I got online that includes: Immediately notify Agent of any evidence of a water leak or excessive moisture or standing waterImmediately notify Agent of the presence of mold, mildew, or similar growth in the Premises after you have attempted to remove it using common household cleaning solutions or anti-microbial productsImmediately notify Agent of any malfunction of any part of the heating, ventilation, air conditioning, plumbing, or laundry systemsImmediately notify Agent of any inoperable doors or windowsOn looking at it now, it does not state what the remediation would be if the tenant does not adhere to this. 

(I have had tenants turn the AC off when they move out or the heat in winter)- We require they have someone check on the property if they leave it for more than 5 days (This is to make sure there are no water leaks or HVAC issues that lead to problems while they are gone)- No businesses can be run from the property (to prevent day care, laundry services, gambling, drugs or who knows what)- We specify yard care includes week spraying and cleaning up sticks less than 1" in diameter (otherwise tenants think yard care is mowing only)- We state that tenants utilities can be used for routine maintenance or repairs (I once had a tenant complain the roofers were using his power for their compressors)- We have a whole section on mold stating that mold is naturally occurring and results from excess moisture.