@James Krahula Besides pocket listings and word of mouth listings through relationships, a realtor can get you access to "coming soon" listings that are only on MLS. This is a relatively recent addition to MLS, probably to help agents compete against Zillow/Realtor.com. There are generally a few hundred coming soon listings on MLS at any given time in DFW. Sometimes you can get a good deal if you move fast and get an offer in before it hits the general market.
If I were in your position (single/no kids), I would be looking at a house hack as my first deal. Even in Richardson, you can get a nice 3/2 for $250-300k. Even better you could get a duplex under $400k. Rent out one side, and rent out the spare bedrooms on the one you occupy and you could be living for next to nothing if not free.
Turnkey is not a bad thing, but realistically over the long term you are not going to see much if any cash flow once you factor in repairs/capex/vacancy/etc until the mortgage is paid off.