Would the units be similar to your current property, or would it be lower quality?

I have a 6-unit complex under contract in Texas.

I need help with updating the existing site paln using the new floor plans, look at the possibility of adding couple more units. 

HOW TO SHARE UTILITIES 101You have a property with two or more units and the utility meters are shared.

I am very new to REI and would like to know if this is a great opportunity to buy in an up and coming area or if the residential properties will negatively impact my ability to rent out my other unit.

But, could I minimize risk of renter defaulting on payments for the 2nd property by turning this property into a section 8 housing unit with guaranteed income from the gov't?

There's also potential for developing "shared living" units where 2 or more people could share space, etc.

Within a year my wife and I acquired four multi-families properties with a total of 20 units, and eventually another building to rent out (currently a bait and tackle shop) as well as an Ice House.

I'd be talking to at least 10 national lenders from biggerpockets and have your land appraised. you better have permits in hand, entitlements. complete, etc. sounds like it's too early to be talking about financing. 

Building small units in low unit count is expensive.