I'm not sure how I'd proceed though in gaining more properties down the road in a year or 2...Do you go full cash, get a mortgage, or some other strategy out there?

At the end of the next 2 years of of your wife's schooling you would have gained enough equity to pay off the car loan in full. 

This board is chock full of examples of Landlords that did it on their own and screwed up.

That may seem like a stupid question, but if you were to take a look at my wall, you would see a multipage blown-up poster map of my target area from Google Maps, enlarged enough to show individual properties.

Bags full of cash, with little tags on them indicating the count going in.

I have entered estimates for repairs and will possibly begin an offer at $105K.Here is a link to the Google photo album of the interior of the house - https://photos.app.goo.gl/mMoCL5Erq4hcqAdP9The figure for Plumbing is for each bathroom (2 1/2) as a full remodel.The figure for Doors includes reframing with lumber and doors throughout the house and windows, which also includes drywall, mud and other appropriate items.The figure for Cabinets/Countertops is for an entirely new kitchen with appliances.I appreciate your feedback.

Rent is due in advance and in full on or before the 1st day of each month without deduction or set off.

For my husband and I to retire early (Ok--- mostly my husband since I am a SAHM) and just make REI our/my full time job.

Does he have another job or business or does he want to work full time in this new business his family is investing in ?

If you are just starting out I might caution you on getting into a full gut rehab in an urban area.