The owner, who showed us the house said he was would be open to a rent-to-open deal, but was not sure about the details and would need to go through he RE Agent. 

I need a free or cheap online application, where they fill it out and I can get the details. 

Those details are typically spelled out clearly in your sales agreement.

Hello fellow BP members, I have a deal that I would like extra eyeballs on.

Thanks Please send details.

Typically its no Issue untIl you have to do an evictIon or when cIty fInds out.https://www.citybuildingowners.com/rules-for-new-york-city-basement-rentals/Read the article should have the details you are looking for..

The extra lot space that I have sits on a abandoned rail corridor that is in the process of being converted to a bike/walking trail and connected to a network of almost 40 miles of trails which is bringing people to the city from all over. 

Taking an actual distribution and properly recording that and doing withholding may be extra work, but that is a "clean" event as opposed to defaulting on the loan.

I only want to be as precise and detailed as possible to help fix this problem.

However, details are sketchy, which is a big red flag.