Cinder Block Foundation

My husband and I recently bought a house that was built in 1900. It was originally a cottage and as such is built on what our inspector referred to as a "non-permanent" foundation. It has a crawl space that houses the furnace and the foundation is cinder block. The inspector's assessment of the foundation was, "significant gaps and cracking in perimeter walls, shifting and settlement in evidence". He said this is not unusual of a house of this age. We are moving in in a few months and want to have a plan of attach for this problem...can anyone suggest what would be the best approach?