Some landlords even have emergency repair protocols that might’ve avoided the locksmith cost altogether.I’d recommend having a conversation with the tenant, maybe offering a compromise like splitting the cost, especially if the root cause isn't clear.

That's a fair compromise, and I've done this myself through my PMs as I never deal direct with tenant. 

Then, the plumber will scope to ensure no compromises in the line.

If they’re still resistant, you might want to consider negotiating a compromise, like a smaller increase or a gradual rise over time to ease the adjustment.

Sometimes, regional pricing differences can work in your favor without compromising the quality of service.

A compromise would be to put half the properties in one LLC and the others in another LLC.

Some of the things you have described sounded like the structural integrity of the home could be compromised so it might be more then cosmetic things.

The following link might have good info, but it's from the standpoint of the person who owes the IRS.https://www.irs.gov/payments/offer-in-compromise

Mine is a 3/1 and a 3/3(my side) and by diligently searching the MLS I found it and didn’t really have to compromise on size.

You will want to discuss this with Seller if they are going to fix the lateral.It would be reasonable for the seller to compromise with you.