Comprehensive Mortgage Calculator Development

I'm looking for an experienced developer to create a detailed mortgage calculator. This tool should not only compute mortgage payments but also integrate several financial factors.

Key Features:
- Standard mortgage calculations
- Integration of living expenses
- Consideration of other loans (e.g., existing mortgages, credit cards, HECS, personal loans)
- Inclusion of rental income

Ideal Skills and Experience:
- Proficient in financial software development
- Experience with complex calculators
- Strong understanding of mortgage and financial concepts
- Ability to create user-friendly interfaces

Please provide examples of similar work done.