Stump Subsidence Assessment

I need a detailed assessment of stump subsidence affecting a residential property with a crawl space. The subsidence has caused cracks in the walls.
The residential property is in Wantirna South, Victoria, Australia.
I wish to work with somebody locally

Requirements:
- Assess extent of subsidence
- Recommend effective solutions
- Provide a detailed report

Ideal skills and experience:
- Expertise in structural integrity and subsidence issues
- Experience with residential properties and crawl space foundations
- Strong report writing skills