Given the slope of the lot and the fact that we are putting in some good foundation drainage, we don't think there will be any moisture issues with the crawl and don't plan to put in a sump pump.

Also, people with sufficient funds will leave these areas and the area will go into further decline.Climate - Properties in areas with hard freezes and excessive moisture will tend to require more maintenance than in milder and dryer climates.

@Tammy PriceOne more thing, if you decide to finish your basement make sure you have NO moisture issues that will lead to mold. 

Of course, with all the walls exposed, it would be better to also install a french drain to take moisture away from the walls.

The moisture underneath caused it to rot and be invested with carpenter ants.

Pricing average vinyl laminate planks, durable, and waterproof (which costs more) at around ~$2.70/sq. ft; soundproofing moisture barrier underlayment at ~$.50/sq. ft.; and a labor cost of $2/sq. ft.

@Efrain Romero You should take into consideration that Mexico is a Narco-state in that all legitimate institutions have been penetrated by the power and wealth of the illegal drug trade.

However, about 10 feet away, not near the laundry, I also noticed some moisture underneath some of the vinyl flooring.

If mold is on the joist that would be no problem to clean, just needs some equipment and on the sub floor i believe pending on how severe it is you may just get away with a cleaning with specialized chemical thats stronger than bleach (I know the name but cant remember how its spelled) , as well as a negative air machine, some duct tape, plastic sheething, tyvek suits, gloves and other ppe needed for the workers or it could be severe enough that the floors would have to come up (I know you dont like the sounds of that) and possibly trace it up the walls if any moisture wicked its way up sheetrock and the insulation thats in the walls?...

If the shower enclosure is in good shape and the remaining tile is just cosmetic pull it off, repair any drywall damage, and cover it with a shiplap or an accent wall panel (just make sure you use moisture-resistant materials).