Floorboards tend to be tongue and groove with a special profile on the bottom side to prevent warping.Good Luck!  

.), but it is quite another thing to prevent it from permeating up through the ground.Even a sump pump will be of marginal use, as you would have to pump off the first few feet of the ground water that will be immediately replaced by new water via gravity.I have building like this, and it ain't fun. 

Given that forbearance and foreclosure moratoriums are literally preventing a key source of inventory from hitting the market this year I don't know how supply becomes an issue.Also, judicial states take so long to foreclose it will be two years before we likely see a wave of foreclosures on those states. 

Focus on being a listing agent; buyer agency work is tedious & prevents you from scaling a business. 

For example burien passed an inspection program (annoying to those of us who give a dang, but manageable and doesn't impinge on tenant screening, setting rents, etc) and they have some rules around move-in fees and relocation,  but they haven't passed any rules blocking out important screening criteria or preventing you from controlling who moves into your property)   In total scale of additional rules at the municipal level Tacoma has the most after Seattle,  but their leadership and rules are still sufficiently more balanced that its an area worth looking at  (if there are still any good deals to be had) There is activity by tenant advocates on the statewide scale to enact some of the same sorts of rules seattle has (just cause, restricted screening criteria, severe limits on ability to evict, collect up front fees, and control occupancy),  and what is probably going to become an annual attempt to enact statewide rent control until it happens. 

Other items are specific to each vehicle such as water clean out, Tire/window shades, etc.Good Luck.Quick non Parking list:Wheel/tire covers; Vehicle cover.Remove and store your tires.Store with a full fuel tank to prevent condensationAdd fuel stabilizersPlace RV completely off the ground to prevent flat spots on your tires, if left for a long time.Cover your HVAC, skylights, vents and windows to prevent exposure to sun and breakdown.Boats leave your plug out, whether covered or not.

Their experience will probably be better than my trial and error with whatever solution(s) I can implement myself.

Sometimes the best advice is right in front of us but hard to implement.

It is up to the heirs if they want to be proactive and prevent it.

It also helps prevent investors from becoming complacent to your other methods of contact.