Its boarded up with "Do not Demo" and a name spray painted on it.

@Leon Yang  This is a home that sits directly across the street from me that has been empty for about three years...owner had a heart attack while mowing the grass and moved into a condo...I think the income on a monthly basis is key...and if I were him, I would want a balloon at some point in the next 10-15yrs...any suggestions?

Thanks @Leon Yang @Dave Visaya @Jesse Waters for the warm welcome and advice.I am still learning how this forum features work. : )  What happen next if I press Connect to Follow or Send Colleague Request? 

My guess is that the seller is trying to save on demo costs. 

And as for the windows if What Curtis said wont work you can mark out the opening with tape rent a demo saw for a half a day shouldn't cost more than $80 and window and framing about $300 then the rest is just labor digging on the outside.

Can I start planning and demo before the 6 months is up.

Vacant land in these areas will be worth more than a boarded up house on that piece of land because it cost money to demo these houses.

Hey @Ron Yang welcome to BiggerPockets!

There are always going to be a few items not on that list that you just can't put a number to (i.e. demo), but for the most part, you'll get it down pretty good.Still, cutting in a contractor as a partner really is fraught with peril based on all the possible ways you can lose out.That being said though.

The above doesn't have to be expensive, you can demo and sheet rock is cheap.