As you gather all this information, I would continue bettering the process and continuing to buy deals.

I am looking into buying a duplex in Hyatt Park and wanted to get some advice on what contractors/suppliers I could contact that have investor friendly pricing for kitchen cabinets, countertops, and bathroom vanities.

If you are single or married with a small child, buying a duplex or 4plex should work well.  

To save those costs, you might want to stick to some year build and older, for example, if you cannot do inspections on the properties that you are buying due to off-market deals or something else that is hindering you (all sellers I buy from do not want anyone in the home till we close).

Then I'd start by saving up, so you can buy your own house and rent out rooms in the house (or buy a place with a suite).Talk to your parents about what their goals are with the properties, what they like and what they don't like.

Quote from @Sofia De Santos Tavarez: Hello, my husband and I are looking to do our first rehab in a different city than where we live (we live in Austin and looking to buy in El Paso), and are wondering how one determines and writes a scope of work and determine what material to buy for what.

Investment Info:Single-family residence buy & hold investment.

Finding a university that is growing each year & buying a home very close on campus to the college housing.

You mentioned buying a fixer upper with your HELOC and now are talking about a 20% down payment.

For quick math you'll need something to the magnitude of 200 units, call it 16 millions worth of multi-family.If you are looking for cash flow, maybe consider buying a business instead of real estate.