That will build good will and the tenant will likely be more cooperative in entering the new rental agreement.If the tenancy is ending, chasing the late fee is likely to be futile, but invoice for it anyway.

This includes "Good Will" and usually an owner will overstate the value.

Chances are that you are going to be OK with a few different options in the same general price range, so let a good tenant make the final call and engender that much more good will.

A good GC (note the word 'good') :-) will have the best subs in the area, and run them efficiently.

To gain some good will, perhaps throw the contractor some money for their time.

Playing games with tenants (at least that's how it must seem to him) is rarely accepted with good will. 

I'd want the PM to explain that the full rental amount is due now, but they can pay a reduced amount next month as a good will for the inconvenience (you decide what that is, maybe 10% off). 

Too many people are looking for the ultimate perfect deal when something that's only "pretty good" will do the trick. 

If you can knock out some exterior upgrades prior to the rental increases that will go a long way to goodwill.

Nothing good will come from it.