The best way to prevent that and become successful is to begin networking.

Question: How can I control the property & keep the exiting HELOC in place but prevent the seller from utilizing additional credit from the HELOC?

Key Milestones (i.e. permits, materials being delivered, etc.) should be highlighted, so you remember to keep an eye on anything that would prevent them from occurring on time.)

I'm sure there are other things as well, but to prevent this post from becoming more long winded than it already is, I'll stop here.

Nothing prevents you from making an offer.

It's the right thing to do, and it might also prevent a suit.Hire a PR person for advice on how to handle it without hiding.

She isn't paying on time, that's enough of a reason for me.As far as preventing others from moving in, we have a clause that states how many adults are allowed to live there and also that no guests can stay longer than 5 days without written permission from the landlord.  

Prevention is the key here.

@Randy Landman Use this for Molds and Mildew, just mix them together with your paint, I use Glidden Paints since I get 45% off, i buy it from them, and they mix it on my bathroom paints, and I paint around 150 of them at a time. http://www.rustoleum.com/product-catalog/consumer-brands/zinsser/cleaners-and-mold-and-mildew-proof-paints/add-2-prevent-mildew-mildewcide-additive.

I thought about doing some colored stone on the front patch and sort of caging it with chicken wire (to hopefully prevent people from picking up the chips and throwing them, etc).