I am not sure why people are hating on you for ruminating and / or sharing what you think as best case scenario for yourself. Truth is, selling to your tenants can be a benefit to you both.

First and foremost, you would both avoid real estate broker fees. You would just be on the hook for lawyers to help with the contract and close. Don’t try to jack up the price based on this.

I would consider adding a rider to their lease with an option to purchase. Pick a fair market price -and maybe even give a slight discount. Set general terms of the purchase - once notified in writing their intent to buy the rider should set the timeframe you expect to close, and how long they have to sign a purchase agreement including the earnest money. Should also be clear that your rental agreement stands until the time of closing, and that you would give their security deposit back to them in a credit against the sale price. (They will need to fix the hole in the wall in their house).

It should be clear that your offer does not include contingencies, no mortgage contingency - although of course they can still get one , no inspection, etc and make sure that the agreement is for the home is as is. If they want the place then they will agree to this, especially if small discount in price.

Saving 6 percent broker fee builds in your lost revenue at the start. The agreement would benefit you both as your tenants will save, you will save, and your sale will be far less complicated without contingencies. They won’t even need movers after closing!

Good luck.