Your understanding is generally correct, but it's important to distinguish between assignment (where the wholesaler doesn't own the property) and double closing (where the wholesaler temporarily takes ownership of the property).

Quote from @Josiah Horn: Just because a tenant tells you they've left doesn't mean they are off the lease or released from responsibility.Give notice of termination.

Doesn't affect us, but it would affect anyone with a hot tub because it would really hinder your ability to refill it.

Since Zillow doesn’t allow live links in messages (even links to articles on their own site), it’s also challenging to direct people to my own website, where integrating a chatbot would be much simpler and more effective.

Quote from @Dina Schmid: You can sell anything you want, but that doesn't mean it will qualify for a home loan or be accepted by a building inspector. 

Winter doesn't bring too much extra cost as long as the home doesn't have outdated appliances and has sufficient insulation.

They made a contract and now the tenant doesn't want to stick to it.

That doesn't necessarily 100% align their goals with yours but at least they have skin in the game at that point.I 100% agree with these comments.  

I bought my first property in North Jersey at the peak of the 2006 market - came to the closing with no money and walked away with $10,000, still own the home to this day - and it's still possible do near this today - so, it can be done with $50K or less (doesn't mean you should do it that way...) 

Quick google search on Texas rules around entering YOUR rental property: "In Texas, landlords are required to give tenants reasonable notice before entering their rental property for an inspection, but the law doesn't specify an exact timeframe. 24-48 hr. notice is generally considered appropriate.