If anyone has some thoughts or suggestions on direction or maybe is reading something i'm overlooking please feel free to share.  

Any help, suggestion and or guidance would be appreciated.I am self-employed, and already work in the flooring industry.

Any suggestions?      

the solutions suggested that hold the open sash in place, pinching the AC unit in its place will not work against a thief with the leg strength of a teenager.

I don't have a good suggestion but am interested in this topic as well.

Hey BP community, I'm a fix-n-flip  investor in training who's studying the business and analyzing deals before pulling the trigger on my first solo flip.

Any suggestion and or advice on how I should approach this situation would be greatly appreciated.

Any suggestions or recommendations?

@Timothy Lee thanks for the suggestion.

I did contact her to see if she would be interested in private financing for a higher amount (was thinking I could do as has been suggested here, then logged i today and saw that almost exactly the same thing was posted as a possible solution, so im waiting for her reply.