I will definitely screen my buyers more in depth in the future to prevent this from reoccuring. regarding the continued marketing clause, I came up with this to include in my contract. 

Whether it’s learning how to build a property portfolio, understanding financing options, or managing tenants effectively, having a structured approach will keep you focused.This clarity prevents you from wandering aimlessly or jumping from one strategy to another, ensuring that you stay on course toward your investing goals.5.

The 5% down option was a great counter to the self-sustainability test that prevented a lot of people from taking part in the American dream and buying multifamily property. 

@Jason Staine I used my local credit union where I also have personal and business accounts. 

Evictions, resident's passing away, posting notices, doing preventative maintenance walk throughs, resident complaints, neighbor complaints, skips, move outs, turnovers, emergency maintenance, etc.I used to be strictly on the ownership side, from 2016-2020 I hired property managers.

Didn't quit the day job and don't plan to but plan on acquiring slightly newer product to prevent some of these issues.

Or are there ways to prevent this?

I need to buy a new shirt as I just spit out my coffee and have coffee stains all over it after reading this post.

There's nothing preventing you from looking at replacements properties prior to closing on the property you're selling, You can even be under contract before you even close on your relinquished property.

Does it cover water stains as well as they say it does--in one coat?