and then using a HELOC on my primary and some cash for the JADU/ADU projects. 

You simply sell the real estate and do something else with the cash. 

I would recommend sitting down with an attorney so they can outline what the process will be like and their rent for closing the selling and what documents they'll need from you (if any because they can draft them).if you decide to sell to a residential buyer, make sure you're confirming that they are able to finance it or that they have cash to purchase it.

If you are buying loans then its more complex as you have discounts involved, monthly cash flows, outflows (like servicing costs) and unknown exit dates.

to cut to the chase land deals normally need 50% cash down.. then lender will do the balance short term unless its ag land.. 

I'm just gonna say as a investor most real estate agents are used to closing deals with either cash or conventional.

Quote from @Dylan Webb: Hello, here's my situation:My wife and I own several properties separately.2 of the single family homes combined we have conservatively $150,000 in equity ($90,000, $60,000) I want to use one of these as collateral for a small loan of $30,000 to put down on a high cash flowing property OR have a lender finance the whole venture at a purchase price of $160,000.

If your goal is to have a cash flowing portfolio of rentals. 

At the end of the day, the most important thing for a small real estate investor is how much cash do you have in your pocket at the end of the month.I also did a MS in Project Management at The George Washington University.  

that's awesome @Tieirra Singleton I love those areas for real estate investing - there is so much potential for cash flow + equity build up.