I'm currently in the process of buying my first home, and I found a property on the market that was priced significantly less than most homes in the area. The seller's justification for this was a bowing foundation wall. Other than this issue, I really like the house and it fits a lot of needs.
I took a look at the wall, and from my research, it seems pretty bad. There is a large horizontal crack running from the center to the right side of the wall, which seems to indicate an excess of lateral pressure, likely from rainfall. I put a beam up against the wall vertically to measure how much the wall has bowed, and it's a little over 5" (meaning from the base of the wall to the peak of the bulge).
My general research tells me that, in terms of bowing (the wall is bowing, not leaning), under 1" is not a huge concern, 2" something should be done immediately, and anything past 4" likely means the wall will need major repairs, most of which involve excavating soil on the other side of the wall (which would be very difficult in this case due to the house being on a hill).
How bad is this, and what, if anything, can I do myself to fix it? Common solutions I've seen are carbon fiber strips, steel beams, a steel anchor, or rebuilding the wall entirely, although I'm not sure which would be recommended here. Thanks all!