Pls educate me (and the community) as to the risk involved with QQQI, SPYI, IWMI. 13%+ yields seem so attractive....what am I getting into?

I am considering investing a substantial portion of my portfolio into dividend stocks. I have easy ones on my radar, like MO, VZ, UVV. In my research, I have come across QQQI, SPYI, IWMI, which are in the 12-14% yield range. All three funds are run by the same guys (Cates, Paolella). Who are Cates and Paolella? What am I getting myself into with these funds? Smart move or stick with simpler choices?