If so, and if you didn't get an amendment extending or modifying the original terms, then I agree with @Richard C. 

If we are gone for an extended time, or out of mobile range, or don't want to be bothered with anything we let the tenants know to call the second number.

I would like to dig the parking pad out as well and extend the entire house and foundation to the property line in the back.

IF so then you may be able to show that your benefit only extends to O/O properties and as a result you'll be purchasing with something other than the VA loan and that will require a greater investment on your part, etc., etc.  

If you feel like there is an ulterior motive, move on until you have a sense of comfort with the people you are about to extend trust to.  

Our goal is to obtain the lot for a similar price, offering 10% interest on the seller mortgage for a minimum of one year, with options to extend.  

When my wife and I rented, we appreciated houses/apartments that trusted us to have our dogs.As a future landlord, I would like to extend this to my tenants.However, I do intend to charge a premium for this privilege.

This was a smart first move i believe as it allows us to get our feet in the water yet keep us from over extending ourselves.

On a commercial property, most conventional lenders will only extend a note up to 75%, occasionally 80%, LTV in first position.  

Just make sure you have a solid plan going into it and makes sure your not over extending yourself.