Even if you are not using the money.A line of credit will only charge you interest when you draw on it. 

The eviction notice shows that you are serious,  you gotta draw the line somewhere.

I would have a sit down and draw a line in the sand.

They are the ones who will be drawing up the paperwork to keep you legal. 

I have a sketchup drawing below of the direction I'm heading (disregard the colors, I'm not great with the color selection of sketchup).

Can be financed.With “Full” version – 20% reserves if renovation is major – foundation, room additionsDraw Requests “Draws” are funds paid to the contractor after work is completed.For “Streamline” – pictures of completed work is permittedFor “Full” – Consultant inspects work

Our jobs are easiest when we are dealing with well maintained homes, in decent areas, that draw in prospective tenants with means and options.

I would draw up a (state legal) purchase and sale offer based on "Comps".Show her the comps you used when you give her the offer, and put a long drop dead date on offer, such as 6 weeks.

If so, I would hire an attorney to draw up the offer and hand it to her with the intent of buying the home outright and separating from her.If you insist on trying the owner financing route, I would figure out what she needs and then find a way to meet that.

@Jim GoebelIs the HELOC on your house essentially a line of credit that you can draw from as needed?