These are brand new units being installed into brand new windows and I just want to make sure it’s done properly.

In most all situations a properly drafted lease is going to include a liability waiver for you in regards to situations like this.

Check with your local laws and give the proper notice. 

There are some smaller boutique managers who charge less utilize the proper channels, as well as the big national STR managers.

I have taken time while on quarantine to learn as much information as I can about the proper steps a beginner should take to begin real estate investing.

Similarly, we learned that just because a contractor has a higher price and a big business does not mean they will be professional or reliable in unexpected situations such as our local permitting process and sending in the proper forms to pass inspections.Only higher contractors that are references from trusted sources.

Having the money lined up doesn't help without a deal to do that is properly underwritten. 

I just wanted to get some clarity on proper protocol.  

Has anyone bought a non-conforming and successfully renovated it with proper permitting?

He missed that some electrical outlets were malfunctioning, the plumbing in the shower was not working properly, the power box was old and outdated, the AC was not working, etc. - Don't be afraid to make sure everything works well and if it doesn't, don't be afraid to ask them to fix it or ask the seller for a credit.