Transcript for Powerball Jackpot Pools: Tips to Keep Friends, Avoid Court
And finally tonight, a lot of us are joining with friends or co-workers to buy lottery tickets. So, here are the rules about how to keep your friends, if you win, and also stay out of court. Here's abc's linsey davis. Reporter: Carmen ortiz is convinced her waitssing days are over. Is this your last day of work today? Fwl I think so. Reporter: She's the executor of a high stakes office pool worth $550 million. Almost 30 people all pooling their money and promising to split the spoils evenly. I have the money, I have the names. Reporter: Oh, wow. With stakes this high, you'd think there would be some kind of contract. But this handwritten list is it. Names and a check mark. Seems sufficient, until they actually win. Just ask this group of construction workers in new jersey. They had to sue their co-worker after he bought the pool tickets, secretly won a $38 million jackpot and then simply stopped showeding up at work. This group of 16 school workers got even luckier, because there was no fallout when they split their winks, leaving them with about $500,000 each. One problem I already foresee? Fernando put in $20. Everyone else, just $2. Split it all equal. People do funny millions of dollars are at stake. Reporter: So, how do ensure your office pool runs smoothly? Always write down terms and list the names of every member of your office pool. Make photo copies of the tickets purchased and distribute them to all members of the pool. Don't run multiple pools at once. And, make a list of people who chose to opt out this time. I'm one of those people that typically opts out, I couldn't help but take the plunge in this pool. You going to walk away from your restaurant? I'm going to fly away from the restaurant Reporter: Good luck. Linsey davis, abc news, new
This transcript has been automatically generated and may not be 100% accurate.