Limited supply will continue to lift municipal bonds through the rest of the year, says Ira Mark, Sr. Vice President at RBC Wealth Management. Mark says income is the cornerstone of any portfolio and he is partial to revenue bonds - munis backed by bridges, tunnels and sewers - due to the reliability of their income streams. He also says he buys individual issues, as opposed to funds or ETFs, so he can ladder them to maximize returns. Finally, Mark says he is not stretching for yield and will stick with higher quality credits, because munis still offer attractive taxable equivalent yields even after the recent price run-up.

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