I've heard that unlike smaller independent companies who put liens on properties, social services won't be stubborn and hold up the sale.

I was a stubborn guy that saw everyone else taking courses on it and thought "I don't wanna run with the herd, I want to do something else" - my mistake.

The third month is them being stubborn and looking for ways to stay or to start investigating new agents stealthily.

Our President is definitely stubborn, and being a BP member, I obviously have many other things going on in my life (real estate, PhD in engineering, a W2 job... hobbies sometimes maybe?).

Are there any other options to make a profit in this situation with a stubborn seller so I don't completely lose the deal?

So yes, you could say the investor is being a bit stubborn himself for not just emailing it over. 

No flood insurance since we aren't in any sort of flood plain and it's never come even remotely close to flooding (per our neighbors who been there 40+ years).So far all my family is safe which is the most important part, although my parents are being stubborn and not wanting to leave their house with 18 inches of water in it (they do have a 2-story house).

Over the years, I've heard about some stubborn Sellers who wouldn't sell at any (premium) price, but then that "any price" became LOWER with time - because the rich buyer/s gave up, and moved on. 

@Jonathan Whitmore we were booked 170 nights in 2017 but could have done better if I wasn't so stubborn on price the first half of the year. 

After he did the appraisal one of his own comps sold again very close to the value we were looking to get and he still stubbornly refuses to re-consider his value based on one of his own comps.