You need to follow your manufacturer’s installation instructions for proper sizing of footings and support columns, their required location, and the placement and type of hold down devices required.
Short of that you may to get the guidance of your building code office or state agency that oversees the installation of mobile homes.
Otherwise you may wish to consult with a local mobile home certified installer.
A building permit may be required to effect the repair (it is in my state) so a good place to start can be a call to your local building code office for guidance.
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