There will be no 30th in February.
I see the problem and have edited the OP accordingly. This campaign will only be done this month, but the OP was talking about payments every month. Thanks for spotting it 
I do realise that both of you are in pretty fucked up position, DB just left you a mess to clean up, that's not right. I don't know what are the escrow terms, I hope you did get paid for this.
DiceBitco.in said that Dooglus and I could keep everything that's left of the 10BTC after payment, but I'm not sure if there will be anything left and if there is, if I keep it.