waterproofing from outside

[Nadya Ostroff]

Hi guys! Looking for advice here. Have a house, that use to be rowhome (had 3 units, 2 attached units got demalished, now it's SFH. )The Joining wall had stucco put on. ( now it's an outside wall). Started to get water In the basement from that side. I think the ground settled a bit outside of this wall. How to fix it? looking for the cheapest solution.( classC/ D peppery).

 TIA for your input!