I inherited a house from my parents which I had been renting to a family
for the past 12 years. Recently they vacated and I did an inspection. In
one corner of the house, the foundation has been sinking very slowly
(about 4-5 inches over 35 years). There is now a gap of about 4-6 inches
between the sill and the house. Unfortunately for me, I am unemployed
and I have a tenant scheduled to move in on August 1, so I have neither
the time nor the money to have the foundation re-engineered- but I need
to fill the gap before they move in. The gap is around 25 feet long,
going around a corner. Should I fill it with cement? Should I shim it
with two-by-fours and then patch it with cement? Is there a better
material or a better way? Could I do it myself? If not, what kind of
contractor could I call to do this work? Thanks in advance.