You can generate some free lists using realeflow's one month free trial.

One added detail is this other couple are family (my husband's sister) so we need everything written and laid out clearly but with the assumption we will operate within these boundaries without going to court...meaning we don't need every word to be air tight but need it to be clear cut (as a side note I'm not interested in hearing about horror stories of doing business with family, I have done real estate business with family for over ten years and am fine with it). 

Other houses that I have that are strongly cash flowing I can use to supplement my income and help with operations costs when starting into the MF property.I have also invested in a pair of fourplexes, which is not quite the multi-family model (which is 5+ units) but a good starting point with a larger supply of units so a vacancy does not hurt quite as much.

If your areas has a Facebook for rent group, this may help grandparents who have FB to interact with younger generations or people who are watching on the behalf of the senior.

If you're generating rental income then you can definitely claim it.

Contribute to the Roth version of the TSP, not the traditional.If you are smart, the military offers huge advantages to wealth generation.

Is a garage conversion of a SFH or Duplex a viable option to generate more cash flow? 

Equity in a property is actually buying cash flow which is not the same thing as a property that is generating positive cash flow.Investors trick themselves into believing they have positive cash flow by throwing cash at a investment.

You are correct on the liability protection with the title in your personal names but an LLC will provide you guidelines of your operating agreement.

Plenty of wealth generation in flipping homes and much faster than buy and hold.