As stated below, how you file your taxes can completely derail your chances of buying a home as a Self-Employment Borrower. Having said that, depending on your credit and the loan program you choose, y might just have a chance. As a Direct Lender/Servicer, we follow the AUS (automated underwriting system) Findings. If those Findings call out for only (1) year's filed 1040s, then you might have an window of opportunity this upcoming tax year but you have to stop "Writing off every legal deduction" and take the hit like the rest of us.
I too was 1099'd in the past, and knowing I was going to buy a home, had to bite the bullet and eliminate many of the deductions afforded me by the IRS. There are some cool things you can keep in mind though, we can add back in your "Depreciation" found on your Schedule C. So maybe you can change how you claim those deductions and serve both purposes. Just a thought. Let me know if you need any further assistance by shooting me a email or message.
Best of Luck!