I would like to know if I can preserve some/all of my liquid capital by avoiding an all cash deal for the lot/land.My thought process is...

My wife has 14 contracts going / started in the last 3 to 4 weeks.. for a cool 10,500,000 in sales volume.. on top of 6 sales for another 4.5 million and then  3 other sales of homes to buy our homes that total about 2 mil.

A lot of people say "if you find the deal the money will find you" but I am just not cool with trusting that, LOL.

Be intimately familiar with it or find someone that is. 6.Buy umbrella insurance to CYA. 7.If you do not hire a Realtor and are not familiar with contracts, hire a lawyer to look over.8.Make sure your credit score is good and you have liquid assets for more than you think you need. 9.Talk to an investor friendly lender to get familiar with the types of products. 

She came out of a recent divorce with close to $1M liquid and a credit score in the 800's, has history as a successful GC/landlady, but after liquidating her previous rental properties due to divorce 2 years ago, no longer has recent income.

How liquid is my investment?

With a heloc, you don't pay a penny until you use it, but it's flexible and liquid.

With average daily temperatures around 80°F and nighttime lows of approximately 55°F, the desert climate follows its characteristic pattern of warm days and cool evenings.

They raise capital for the balance sheet lend it out like other insurance companies do on prime assets  keep some liquidity for claims. 

very cool!