There's likely several expenses you can capture on your schedule C, such as a home office and mileage. I see a common misconception that you can just begin investing in real estate and have less taxable income. You can minimize taxable income on your real estate investments by depreciating the property over 27.5 years and capturing all your expenses. You can only offset you're other income if you have losses from your real estate investing, but this is more of a "backup" in my opinion incase you make bad investment decisions and lose money. But what investor plans to lose money?
Also, the IRS doesn't really view house flips as an investment, they view it as a business. They view the houses as inventory, and therefore profits get taxed in your income bracket rather than the capital gains rate. If you live in CA, you better hope bill AB1771 doesn't get passed, which will add a 25% tax on house flips.
Make sure you set aside federal income tax, self employment tax, and state income tax for your recent flip.
Cash is going to be king as interest rates are going up. If you're taking out loans for rental properties, cash flow is going to become much more difficult, but not impossible.