Questions from a Connecticut newbie

[Matthew Lessard]

Im new to bp and the realestate game. I have two questions.

1: when looking at fully rented multifamily units is it common practice to ask the owner for the existing tenants payment history? 

2: when listing a property fsbo is there a way to state that your willing to pay 3% to a buyers agent so they dont look right past your property?

Any help or advice would be appreciated :)