This will make you more confident and gives you a sense of control at the bargaining table.

The drainage system includes: roof, gutters, downspouts, conduits to take water away from the foundation (solid pipe and french drains), proper slope away from the foundation, drainage rock, etc.

A lot of hurdles to jump as the sellers are a disgruntled family that one partner passed away so the kids Inherited the one partners half and there is already a signed purchase agreement with the 50% owner before I came to the table with an offer and the other 3 want to accept my offer but that is still only 50%... 

I have an EXTREMELY interesting deal on the table and need all the help/advice I can get with executing this deal.

When you are worried about losing your job and putting food on the table, you are unlikely to become a landlord.My advice is always be buying and buy twice as much when prices drop.

It could be money, it could be time, it could be some other service—ex: if you are an accountant or a web designer etc Just make sure you are bringing something to the table and not just asking them to essentially work for you for free.

@Duriel TaylorMy experience shows that often the smaller credit unions won't necessarily have better rates but you might have a better chance of getting to the closing table. 

We negotiated the deal down by $18,000 even with other offers on the table.

For example we are moving to France this August, to spend a year there, learn about wines and improve our french.

What are somethings that I need to know before bring the deal to the table?