For repairs, he complains about the dish washer not working correctly and leaking from time to time.

So he sits outside the kitchen, get a ticket for every dish taken out and confirms it, and at closing time, confirms customers paid for the same number of dishes out front that came out of the kitchen.

Not a dirty dish in sight. 

I don't mind washing dishes by hand for a while, so at what point should I replace the dishwasher? 

In my market, a dishwasher is a must.must renters here are oilfield and work a lot so they hate doing dishes

Also you should get a contract before the following:1) A wedding gift: They are required to send a thank you note and a Christmas card2) Nephews Birthday present: Should be required to call with a "thank you"and dog sit on a future weekend3) Mother asking you to come over for Dinner: She shall be required to sign a contract that she will be making the "Coconut Pineapple upside down cake"4) Elderly neighbor shoveling snow and you help: Should be required to sign a contract that they will wave every time you pass and inform everyone walking a dog that you are a "standup guy"5) Wife makes dinner: Should have you sign a contract that you will be doing dishes every time she cooks.6) A contract should be written stating who is tracking and paying mileage out of their paycheck for doctor visits as well as if she needs to help your parents, siblings, childhood friend and expected compensation.

I couldn’t even wash dishes without a ged or diploma.

She is a nice girl, but if all i have to do is some occasional extra dishes and cleaning and i know it comes with a $400 venmo every month it is an insane deal.

When I went, I realized the benefit of real estate investing but didn't have the thousands of dollars to dish out to join their membership program.

I have to agree with my fellow BP members dishing out this great advice.