What you are looking for from the Planner is a site plan that shows the footprints of the buildings that compose the Project, access (ingress/egress points) and internal roads and improvements.Once you have the plan noted above, the Civil Engineer can use it to determine the lineal feet of wet and dry on and off site utilities.

I had a plumber come and assess the issue, who said that while fixing the plumbing issue might be a one day job - there was sewer water damage that I would need to worry about since it can affect the floor, sub floor, base boards, dry walls, high voltage electricity lines (because of the dryer). 

Once inflation fears subside (I think the inflation is temporary and will be offset by lower spending as the government money dries up) and more investment opportunities open up, we will stop seeing the crazy rise in housing prices. 

I am torn between pointing the rocks with hydraulic cement and dry locking versus having an interior waterproofing system installed.

Maybe so, but in my experience, not many flippers are actually out doing that because they are busy flipping housesAs far as Zillow is concerned I used to use that for coming soon leads but now that coming soon has been added to the MLS in my market that's dried up a bit.

you don't have a hard decision making criteria.So run your numbers first, "dry".

Do you have large trees around the house that could be in the way of direct sunlight to dry the wood/soil/etc?

Simply, REget's so expensive that demand dries up.

Imagine having to move out your tenants (who are angry and shell shocked because all of their personal belongings were destroyed), rip out your flooring and drywall, dry out for a week or two, and put everything back together - All while dealing with a remediation company who has 15 other jobs on the go at the same time as yours, and a GC who also has 15 other jobs on the go at the same time as yours, and dealing with your insurance adjuster (remember, the whole neighborhood got flooded, not just you).

If it is an unopened canned/dry good (besides spices, most people appreciate the spice selection whether opened or not) it can stay, otherwise it gets tossed.