That seems fair to me, but I've never been a mooch, a leech, a parasite, a beggar, one who mooches off the "gubmint" dole, a ne'er do well, a layabout, a deadbeat, a scammer, or one who leads his life trying to get something for nothing.
I'm sure your tenants will take issue with your "cyphering", because anything less that 10 Benjamins isn't enough.
That said, send the check (less the deductions), let them howl because you affixed on the reverse of the check above the endorsement block : PAYMENT IN FULL.
Also put on the face of the check in the memo area: RETURN OF DEPOSIT with accounting as payment in Full.
Douglas Whaley: The Payment-In-Full Check: A Powerful Legal Maneuver