Drainage Issue - Need advice!

[Kathryn Schauer]

I'm having a drainage issue at one of my rentals.  If they get a heavy rain, one side of the yard is holding water up against the house, and it's seeping inside the home.

Last year the PM installed an outdoor sump pump in the area to help move the water away, but that isn't adequate.  They have tried to seal the outside of the concrete, which also hasn't helped.

The latest tech that went out (see video) recommends a rubber sealant along the outside.  

https://raineyrealty.com/play_...

I would love any advice for how to proceed.