I am buying a home and one part of the home is actually visibly sagging. While looking at the crawlspace, I've noticed that some work was done to support the home. It seems like there is no new settling cracks and it looks like the home has settled, but I want to fix it permanently and level-up the sag. After looking at the foundation wall, it seems to be in perfect shape and the sag was cased by the woodwork.
Yes, I can improve upon what was done before and add proper footing/ support beam/jacks. But I am wondering if there is a way for me to attach some sort of a "shelf" directly to the foundation wall, and put jacks on that "shelf".