You will then have a few options with that rent money....you can put it into principal or you can start saving it to purchase yet another property.

I may have to hire law care or put my push mower in my car and go do it. 

The idea that you can build wealth without putting any money into it is a recipe for disaster and the sales pitch of gurus trying to steal your money.

You can put a little as 5% down payment for conventional or 3.5% for FHA.Alternative way, is to acquire the 2nd property as an investment property with conventional, while putting 15%-25% down payment.

I have saved 80,000 to put towards this goal.

If You are buying as an investment you should only be putting 15% down and as a primary 3.5% for FHA or 5% for Fannie Mae.

20% down payment will be personal cash that I’ll put into the LLC as a capital contribution.

Since he was 6 months late on the loan, I had urgent needs for the loan and wanted a wire for many reasons (my bank- bank of America puts holds on all large checks, so I am blocked from access to it for a week) and I didn't trust him with my wire information as he told me point blank "I'm not going to give you that information" when I asked who the closing attorney was. 

Should I put more money down to keep the monthly payment down and have cashflow?

I also recommend one when unmarried partners want to invest together, for ease of tax filing if no other reason.Whether or not you NEED to put each property in a separate LLC is a great discussion to have with your attorney.