My evil (truly truly evil) ex-wife has admitted to doing milder drugs (like weed) in the past and is now with a very thin pale guy that has 'the look' of a drug user (as I am told by my girlfriend who has hung around drug users in the past). I managed to get out of the custody settlement halfway decent- paying $1100/month in child support which is less than the state mandated 28%. I also get to have my kids every weekend (better than most dads).

Every month she hits me up for money even though I pay my child support and this time I told her I was suspicious about drug abuse as being the reason she never seems to have any money (despite having 3 incomes). She immediately threatened to take me back to court to reevaluate what I have to pay in child support. She would 100% win that one because once my income was subpeana'd she would get like double what she's getting right now.

I'm scared shitless right now because she put me into about $23,000 worth of lawyer debt when she left me for another guy, so I have that to worry about, and now she is threatening to get more out of me- and the judge WILL give it to her.

I'm considering hiring a PI, but they are expensive as fuck. What do? :(