Mark, the good news is there is not any banks doing this.

We do have a mortgage, so we would need to talk with our lender to avoid the "due on sale" clause (at least that's how it has been explained to me).

Do not bank on setting a new neighborhood record on $ / sqft - be conservative in your numbers.

I hope your attorney has explained this to you. 

Paying it down faster doesn't change your payment.I recommend you speak with your lender so they can explain this to you.

Many community banks will give you credit for proforma rents.  

Start their own consultancy (either recruiting agency since they are the top recruiter like I did, or if they were pentesting for different clients like banks, fortune 500, etc, they start their own pentesting consultancy/firm). 

Nomad also held the renter's deposit hostage even after I cleared the transfer with no damages to be charged.I had to remind Nomad there is a difference between “can” and should” , while you “can” hold a deposit longer it “should” only be done when there is a question about damages.My bank liked the guarantee, the disorganization inside Nomad and the horrible vendor management would cause me not to use them again.

It earns a great rate of return compared to a bank account and is fairly liquid.

@Zach Denny  Similar to what Minna posted above, I have done with a local portfolio lender bank where they set their own lending rules.