u/bmisko

This afternoon, a home inspection done on a townhouse. The inspector pointed out this crack in the basement situated directly beneath the staircase on a shared party wall adjoining the adjacent unit. It's a singular vertical crack extending continuously from the underside of the upper stair stringer/framing down to the floor slab. No additional cracking was observed in any other exposed or unfinished structural sections of the property. Moisture meter testing across all adjacent finished wall surfaces returned normal results, indicating no active hydrostatic pressure or water ingress. My question is: would a crack like this be a cause for concern or deem the structural integrity compromised? Thanks in advance for your insight