Thanks in advance for your advice/assistance. 

Thank you in advance for any help that you may lend to my situation.

While it sounds like they dodged a bullet by finding out about that specific neighbor in advance, I don't think I would say the neighborhood is a place one has to own a gun.All that being said: (DISCLAIMER: I do not know your contracts and am just some dolt rambling :) If he is willing to give up his $1000 the answer to what can he do is.... nothing.... do nothing.... sign nothing more.

Thanks in advance.

go back to your lender and see if you can get an extension and a further advance for that one thing. 

Thank you so much for your advice in advance.

Thanks in advance.

What are average HELoC rates (Im in NY but curious of rates to expect)He would be silent for the most part, covering the funding - my down payment I would hold the title of the property and be the primary decision makerThank you in advance for any advice as to how to structure this type of fundingLet me know if I should just use a bank mortgage instead

I notified both tenants a month or two in advance.

Thanks in advance