I had planned to attend a local REIA meeting last night but certain circumstances prevented me from being able to attend.

@Joe Villeneuve Good info, how did you educate yourself on the Detroit area well enough to prevent losing a lot of $$$.  

I just made an honest post, never planning to get beat-up by Bill G. All

I will do that - I just didn't want to take up a slot that would prevent someone else from attending, since I knew the time wouldn't work for me. 

And because of that I say that you should use a professional any time that you want to address mold correctly, using the latest standards, engineering controls (to prevent cross-contamination), trained staff, be covered by THEIR insurance, etc.I realize that many people here on BP have chosen to do it themselves and some of them don't ever have downstream problems. 

The waiver prevents any suppliers that my subs hire from putting a lien on my property if the sub doesn't pay them. 

@George Wines, I'll chime in here, but @Mike Wood and NA Beard are right on.As a former city planner in the Front Range, I can think of several legal issues preventing you from condominiumizing a duplex.  

I have found that even $50 can prevent people from looking.

Make sure you have the tenant file with you & you have documented everything (late payments, damages thus far)Everyone has the right to appeal, not sure if there is anything you can do to prevent the tenant appealing.

Make sure the note has a an agreeable extension option to prevent putting yourself in a bad position if things take longer than anticipated.