- Repairs
- Mortgage payment
- Mortgage insurance (PMI or MIP)
- Vacancy rate
- Property taxes
- Utilities (water, sewer, trash, electric, propane, natural gas, etc.)
- Catastrophe insurance (flood, fire, earthquake, property hazard)
- New appliances
- General upkeep, landscaping, and property management
- HOA fees/dues
- Office supplies/software
- Gas/mileage
- Payroll