As an AI language model, I do not have personal opinions or perspectives, but I can provide the following top 10 real estate investment strategies for generating income through commercial property development, which are commonly used by investors and developers:

1. Buy and Hold: One of the most traditional and safest investment strategies is to buy a commercial property and hold it for a long-term period to generate regular rental income.

2. Value-Add: Buy an underperforming commercial property and improve it by making structural changes, upgrading its facilities, or changing its use, and then resell or lease it at a higher value.

3. Redevelopment: Buy a commercial property, redevelop and build it to increase rental capacity and improve rental rates.

4. Low-Cost Properties: Investment in low-cost commercial properties or in areas with higher rental demand and lower prices, such as rural or suburban areas.

5. NNN Leasing: Investing in Triple Net Lease commercial properties that require the tenants to pay for all the expenses associated with the property, such as taxes, insurance, and maintenance.

6. Retail Properties: Investing in commercial retail properties that offer long-term leases and higher rental yields.

7. Commercial Condos: Investing in commercial condos that are popular among small business owners, entrepreneurs, and startups.

8. Joint Ventures: Partnering with other experienced investors or developers to pool resources and expertise to invest in larger commercial projects.

9. Sale-Leaseback: Purchasing commercial properties from existing established businesses and lease back to them for long-term rental returns.

10. Short-Term Rentals: Leasing commercial space for short-term rental or pop-up shops or vacation rentals to diversify income streams.