Clearly a judgement call.

And then as days passed he kept giving reasons that it has been continuously raining and he cant start the process yet.

You can always pick those up after the lease ends via a judgement in court - you will have the same odds of collecting unpaid rent (close to 0).Sometimes we take it personally when folks do stuff like pay late every month - landlords live longer when we learn to not take things personally.

I installed the pump to handle all the rain water for my entire 8,000 sq ft parking lot and driveway.

If it's still raining outside, if you can get the carpets in a garage and under industrial drying fans, you may still be able to get them dry.6) if the water soaked any drywall, you'll need to cut that drywall out and throw it out.7) rent a bunch of industrial drying fans from home depot/lowes (they are specifically designed to dry up houses that were flooded, and soaked carpet.

But I wouldn't issue a judgement as to if the best idea is to write it off altogether and say "just rent for a few years" without talking with him more first. 

Or it may be surface water flowing from another lot, or surface water piling up from rain and not soaking into the soil, which may be some type of backfill they had dumped in at some point during the construction process to grade the lot higher than it was when they bought it.

On very heavy rain days we always get a lot of calls due to some basements flooding.It's just the nature of the beast and nothing major.Maintenance pumps out the inch or so of water fairly easily and quickly.Property management walks (For free) the property yearly before the lease renewal.We had push back on charging $250 for a 2 x yearly Property Condition Report through Inspectify but are now having a "click out" option so we can't be blamed in the future for deferred maintenance.It's incredible the lengths that we need to go through to protect the company from such instances.With that said, we could have done a better job with preventative maintenance here.Investors reading, "Yes" we do our best to cover absolutely all angles as your eyes and ears, heart and soul on the ground.

Recent heavy rains in the area caused a landslide.

Egress cover - if heavy rain has been occurring, you'll also want a plastic cover for your egress window.