It just gives you a reputation of being unreliable when it comes to closing.

Same for plumber.

I'm primarily looking for a sheet-rocker and plumber.

Agreed, I understand things happen and there's civility and reputation to maintain. 

I don't think any of reputable PMs folks use here on BP do that.

Hi all,There are many reputable companies who will list properties (for sale) on realtor.ca for a flat fee without the use of an agent, hence saving commissions, but I haven't been able to find anyone reputable for leases. 

This will establish you as a reputable company it will also be able to link you with your leads .2#  Make it make since You must have properties that are at a low enough price for your investors and be able to make a profit at the same time .

, the appliances/furnaces are still under warranty and I have people to call if I do have an issue (plumber, HVAC guy, electrician and a general handyman).

I had sent my plumber to change out the p-trap, they said nothing about the supply line.

No one will want to every let you take an assignment from them if you get a reputation for backing out of deals.