Roth IRA conversion while using government supported health insurance

I am using government supported low income health insurance plan. I am planning to convert some money from traditional IRA to Roth IRA. Will I loss the low income qualification because the conversion counts as income? I am self-employed with myself only. I have about 10k income from graphic design, 10k income from a rental property, and 10k income from CD accounts interest. How much can I contribute to my Roth IRA? Will my passive income qualify for the income qualification?