Maybe $26 to $65 depending on your re-evaluation.

They are also progressive, so you may see 70/30 split up to say 13% IRR.  

By speculating on what future rents might be, you are adding value to someone else's property, which is not helping you.A good rule of thumb when evaluating a deal is take the gross rents and divide by 2.

As I mentioned above I'm trying to get opinions on how to evaluate my current offers, without getting into strategies on how to negotiate the highest purchase price.

I would talk to an attorney, title company or an experienced investor in you area to evaluate that risk.I think the bigger risk is that one company owns the rest of the building.

Please keep us all posted on your progress

Make connections, learn from your peers and get some education on how to evaluate notes and due diligence.

You can change your credit score within a few months by evaluating it and taking steps to have negative reporting deleted/adjusted. 

If you would like for us to help evaluate a deal, and in your case a property(s) for you, I would encourage to give as much information as possible.

My question for these investors is; have you evaluated what your cash flow will look like if your mortgage rates rise substantially?