Every fingering that fits a hand
a887
hard
accb
hard
x547
easy · no 5
What is true of it
Fm(maj7) is F, A♭, C and E — 1, b3, 5 and 7 counted from F.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 3 fingerings below is a887: 4 fingers, held at the 7th fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
Where its notes are on the neck
The brass dots are F, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
Fm(maj7)/A♭
1413
Fm(maj7)/C
5547
Fm(maj7)/E
9888
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.
F in other shapes
Cm(maj7)C♯m(maj7)D♭m(maj7)Dm(maj7)D♯m(maj7)E♭m(maj7)Em(maj7)F♯m(maj7)all 374