While this may an interesting mental exercise to go through, my opinion is this would be a foolish thing to actually do. 

I will tell you that the GC portion, if he is working physically on the jobs, scheduling subs, and project management, is much more physically and mentally demanding than the business side of the deal  (real estate/ marketing/legal).

Even if my offer isn't accepted or things don't work out for other reasons it's been a good exercise, as a newbie, trying to assess the costs and potential returns of the two different options.

A property does not usually hit the email blast phase until it's been picked over by others in your areas, so most of the time it will not be a deal....But if you get in the habit of looking at all of them and analyzing a few per day, it's a great exercise to sharpen your skill AND get to know the area.

For the purposes of this section, a tenant shall be deemed to have relinquished possession of the premises upon any of the following:(1) Execution of an order of possession in favor of the landlord.(2) If the tenant has physically vacated the premises, removal of substantially all personal property and the providing of a forwarding address or written notice stating that the tenant has vacated the premises.

I’m in the location I wish to invest in so I can physically look at the properties.

Perhaps you should start a new thread“Help-Exercising tax sale redemption rights in Texas”.

Also, I will not be able to physically look at the house for at least the next two months so I can't confirm the state of the property although it appears to be in good condition from the pictures.

Best course, IMO, would be to buy one cash, then refinance it later if need be.Last thing to consider is the physical condition of these properties.

Might be an interesting exercise for someone here to call around and find out who is cheapest.