Is it legal to sell a house on a wrap that you own subject to in Texas?

I've been hearing how you have to put a percentage down. but if a house is 300k and i have to put 5% for EMD, i don't have that kind of money to put down.

I live in the Portland metro area and I am looking at investing into a multifamily, or singlefamily home I can house hack and eventually turn into a rental.

@Eric ClappI don't see cash flow happening much of anywhere in Denver (or in Colorado Springs for that matter), unless you're doing something creative -- house-hacking, STR, MTR.You ask about higher priced properties and therefore better rents.

That hardly makes the house "used" by most any standard.

The previous owner is still alive and was residing in the house. 

There may be more I'm leaving out, but any help would be great! 

House already has smart lock, clean...

They are trying to get ahold of a homeowner to buy his second house which is in foreclosure.

The non-buildable tract of 15 acres was being sold to a farmer for crops, not houses and they were not permitted because no building rights were remaining.