ANN ARBOR, Mich.--(BUSINESS WIRE)--The Michigan Angel Fund (MAF) concluded 2019 investing a total of $1,043,000 in 13 early stage Michigan-based startups, including three deals through the recently created MAF IV which opened in April and closed in December with $2 million in investment from 49 investors. "In 2011, when SPARK created an angel group, the priority was to attract high-net-worth households into the angel investment world by thinking of tech startup investments like they would any o