Watch the A Little Latin online guitar lesson by Brad Carlton from Chord Studies: Open String Chords Vol. 2
This is a Latin-sounding progression in the key of Dm. We finger our first chord, Dm with our second, first and fourth fingers and this allows you to keep your second and fourth fingers as pivots when going to the B♭maj7. Your fourth finger will be a pivot as you go to the A7sus4 and then your second and third fingers will come into play when we play the Aadd♭9. This chord really gives the progression a flamenco vibe. You'll notice as you finish up with the A and A7 we have a descending line on the G string.