@Sean Stewart I enjoy Joe McCall very much.If you want to act as a principal in a lease and an option, and your INTENTION is to assign the deal, I would be a licensed agent.Or have a licensed agent show the house.There are brokering laws in MD/DC/VA.Also, think of getting title through a sub2 first and exiting as a lease 2 own. 

 $4,000 lease payment ($1k going towards principal paydown) over the 2 years.Pretty close to the $500k property renting for $5k per month we were discussing, given what the option payment does to the numbers.I think I am going to pass, but LMK if you have interest.

The principal paid back in 1 - 5 years.

I would suggest either staying in your principle residence or investing in another SFH but NOT moving into it and NOT going the route of living in a duplex (or similar scenario) because:a) For your principal residence all your capital gains that you have accumulated up to $500k (since your married) are TAX FREE.  

I am not cashflowing, but obviously trying to pay down principal.  

Your principal and interest would be $336.78 per month.  

It is a 10 year ammo with interest and principal due annually.

It doesn't happen everyday but does happen.I have a client who bought a pharmacy  with 10% down putting 500k back in 2012 and now with cap compression they have 600k in additional equity not including principal pay down or down payment even after resale costs.

Is the mortgage in its final years so that much of the payment goes to principal?

I would love to be able to get those terms on low principal loans.