Sound Like A Relatively Easy 50/50 Split?

Spouse received an inheritance several years ago. It is in a joint account at this point under both of our names. I have been depositing my pay into this joint account and we have been pulling money out of it to complete home updates for the last few years. We own the home together as well as his 401k. All of this was accrued during the marriage.

I have worked consistently at least 80% to full time throughout the marriage.

Spouse is now drinking too much, like every day. He is hiding and lying about it. I do not drink so this is becoming a real issue and causing me significant stress, anxiety, depression, and exhaustion. This has been going on, on and off throughout the marriage and has started back up. I stayed to get our kids through college with no college loans debt and we did that.

I am planning to leave within a year if the drinking does not stop. It is destroying my ability to sleep through the night as well. We are getting older and there is no place for behaviors that can destroy one or both of our mental and physical health like this heavy drinking.

He is out of work right now but looking for a job and so I am carrying the load of the mortgage, bills, all of it on my salary. The pattern is that he loses his job about every two years. (I obviously suspect he performs poorly but he always spins another story that he was surrounded by idiots.) We are seriously considering paying off the house this month so there is no mortgage. I can then much more easily float us on my salary with the mortgage gone.

My question is if we pay off the house, and I would like to leave in a year due to his issues, would it likely be a relatively simple and clear case of sell the home and split the equity/profit?

We would have no debt at that point just the paid off house, his 401K, and what is left in the joint bank account after paying off the house. I am hoping for a clean and easy 50/50 split if things go that way.

Location: Georgia