Look after them and make sure they get as close to $21,000 of their money back no matter what.  

You may be able to find this online (state/local government websites would be only credible source I'd trust; although, your licensed agent may be able to help.)  

I assume I can easily NOT renew a lease if I am moving into the unit as owner occupied and the tenants shouldn't be able to fight it.Thanks for all advice and anyone who would like to connect online or in person for a drink and to talk REI.Scott

However, this new buyer is threatening to get attorneys involved because he seems to think that this is not a encroachment granted in perpetuity.I think my folks are in the clear on this due to the nature of the language in the agreement but the last thing I want to have happen is get lawyers involved and have them have to pay to move the tank since, technically speaking, they are in the wrong.Don't have any experience/advice in this matter?

You know, because, Cleveland:)I would recommend having whoever your local guide is, both show you some property you have pre-screened online, and also have them show you some they have selected.  

If you don't keep insurance on the property if its mortgaged, the bank will get insurance for you and you won't have a choice in the matter.

When you post online, show lots of pictures to stand out.

I reckon there's ALREADY a Duplex where you want to live, BUT, it's in TERRIBLE condition, so the Seller would sell it at a severe discount (say, $350k) to avoid those rehab costs, and their circumstances are such that it doesn't matter to them about the Buyer potentially being able to turn it into a $600k Duplex once rehabbed.I reckon: Look for your forever home (but one in pre-rehab condition) - NOW!

No matter what you end up putting on the gutters I wouldn't expect the renter to ever be responsible for making sure they are doing the job.   

While there is some variability by region, Kijiji.ca is by far the most popular on-line listing site.