The lender is going to know that the tenant's lease payment obligation will end when they buy the house, so the rent isn't going to hurt their debt-to-income ratio or otherwise harm their ability to get a mortgage.2.  

I will tell you that if you don't have an understanding of all of this, it may not be the best option for you, as it can cause you more harm than good.  

I see no harm in posting same.

No harm in reviewing again and again.

This has led to harm to MANY sellers.

No harm in ASKING your Lender, is there?

Over-leveraging can be just as harmful as under-leveraging.

This was a short lived but stressful couple hours and I thought all is well that ends well and no real harm done.

You are doing buy and hold so that isn't a big a deal as if you were rehabbing, but still important to know.If you aren't involving him at all then no harm no foul.

As long as they close as agreed, no harm no foul.