You need to read and understand the laws that are specific to your state.

You should read more books on this topic because you haven’t even scratched the surface.

For the FL properties, I have read that for a second property there would need to be 20% down payment. 

From what I've read in the Wall Street Journal, Austin's push to increase zoning for multifamily developments seems to be making a real difference.

I read a few reviews on an agent that came up on BP and they were not great. 

The implication is that the provider reads AB468 and understands the punishment associated with bogus ESA authorizations (even if no one has ever been charged) 3) meet the ESA.  

I had someone give us a fake employment letter and fake Visa last month so if it feels off, trust your gut like @Jeff Willis said.

You can do a subject to (although I've never heard of doing this with a HELOC) and there are a few risks to them and since the loan stays in place and the seller's name thereby stays on the mortgage despite selling the property, it will take some effort to gain a seller's confidence to do such a thing.You can read more about them here: https://www.biggerpockets.com/blog/2016-07-03-subject-to-rea...

Dallas-Fort Worth’s got a lot of people looking for rentals, so demand’s high... but finding a solid deal is key (from what I read in the WSJ).Let me know if you need any help!

Read some books.