And yes, we can have a discussion of how STRs ruin neighborhoods, and crime goes up 473%, and people are being displaced from affordable housing, and all that crud.

If you ruin your credit it can take years to recover .EVERYTHING is expensive and  it is showing no signs of stopping .

We received a judgement that it was dismissed  and the Rent Bureau shows nothing on my SSN but I was stuck in a crappy situation that is ruining my life!

.)" - this will ruin that relationship in seconds.

If the washer you provide leaks and ruins the tenant's property then you will be responsible to repair or replace their belongings. 

A friend who has a rental property just told me that his rental was ruined by a mom and a daughter tenant who never mentioned they have two giant dogs when they applied for the house.

Nothing can ruin your property faster than water infiltration. 

I have thought about partners and guys at work have expressed interest I just don't want to ruined work relationships if something were to go wrong with the deal or I couldn't keep up my end for some odd reason.

Rules can change and ruin your investing strategy.

I don't want to ruin this relationship but would you suggest trying to get this firm to own some of the mistake ( credit to my billable account) or just move on?