You will end up way over your head and likely loose a lot of money.

Only 2 pieces came loose but luckily they didn't break so I just cleaned up the old thinset and reapplied.  

I was about to loose my deal and I got my money in 5 days with Jet Lending.  

I am no legal expert, but it seems to me that in case we end up in trouble directly with the second person - we never had them as "tenant" bound with the lease agreement.

The best thing you could do is to sit down and talk with your Tax Advisor or CPA to see how you can make that particular strategy work without loosing your money to taxes or penalties. 

Is it O.K. liability wise, to have a handyman:Replace a bathroom light fixture.Replace a ceiling fan.Replace a switch.Replace an outlet.Replace a standard screw in lightbulb.Repair a loose outlet box.  

Did he loose the house or did he willingly sell it? 

As others have said, the best thing to do, is to remind people that noise travels.The problem is that many people, go from a house, to a condo, they assume its going to be just as queit.Then once they hear a very minor footstep, suddenly all hell has broken loose, and they cant live there any more.People are soft, very soft, and need to be reminded of reality.Too many first world problems

I would listen to the BP Podcast with Thach Nguyen on how he knocked on one hundred doors a day , five days a week for ten years and that got him one million USD per year from that ACTIVITY.Make sure you dont miss the part where he says one home seller let loose a dog on him and he had to get attention at the hospital from the bite.I would also pay attention to the Tom Hopkins Champion formula to embrace rejection on pages 110-125 in his book Mastering the Art of the Sale.Especially the part where he says , you are paid for each rejection you getThen TAKE ACTION, make the calls, follow up leads, ask for referrals, make offers, buy properties, choose your exit strategy etcin making calls i would attempt to incorporate "negative phrasing" as taught by Steve Trang, to locate buyers, sellers, private money lenders.I would also set a saving rate as taught by Anthony Robbins from book Money, master the game, becoming of an investor, taking advantage of the power of compounding I would also keep in mind the 10000hour rule from Malcom Gladwell's book, Outliers reminding myself that attaining world class takes commitment

"Electric panel is overheating"  this happens when you have loose lugs at the breakers and is arcing, easy to fix.