While we faced some challenges with unexpected repair needs, our proactive approach and strong project management ensured these were addressed without significant delays.

I submitted my email address to inquire about it. 

We updated key areas like the kitchen and bathrooms, improved the property's curb appeal, and addressed any necessary repairs to ensure the home was move-in ready.

Your lease should address this.

One challenge was navigating the quick turnaround time while ensuring all details were addressed.

However, I haven't found a single video or article addressing how to apply it in Germany.Can you help me with this?

The tenant owes 3 months of rent, unpaid utilities, and trashed my 2022 built condo and left several days before the sheriff had to break into the condo as no keys or forwarding address was left by the tenant. 

However, when I Google Fastlien I go to a page offering the Fastlien.com name for sale.Sorry for the typo :) the address is fastlien.co, not .com.   

The foundation issue got me a $17K credit on the purchase price of the house and was immediately addressed.

If you're able to talk to the planning department and bring an actual address, that's a great place to start to explore the idea.