They can know sellers seeking a quiet transaction, or they might have information about off-market properties.Because off-market transactions sometimes include personal circumstances, keep in mind to approach potential sellers with professionalism and sensitivity.

Maybe I'm just being sensitive, but then again people might be acting a little bit like jerks. 

I am sensitive to the notion that we're in a pandemic and as far as I know nobody in the building is struggling from COVID-19 circumstances yet the size of the monthly loan payments is going to force my hand to bring many of the units up to market rates.