Yes, wholesaling is tough to break into and to do it correctly is to have a good foundation of knowledge on the subject. 

Eichholtz’s initial research showed that real housing prices (corrected for consumer price inflation) gradually changed over time, but were fairly equal in 1973 compared to prices in 1628."

You may want to think about working with a realtor or a really good attorney to make sure you are set up correctly to start off in the best possible situation. 

Separate checking accounts not required, but you need to maintain separate books and records.The TREC requirement is correct, but odds of enforcement seem low.

This is sometimes called the "Enemy Method," and you can search for more details.3.

Do you think that could lead to a price correction or just a plateau?

Since I'm doing this myself I did able to correct/complete them.

We need a significant retail price correction as a catalyst to change that, in WC at least. 

Now private lenders are my main purchase method, along with seller financing and BRRRR.

Verifying rental history often takes a long time to complete due to applicants not giving us correct landlord contact information, landlords not returning our calls or refusing to give us any details.We also deal with applicants trying to have family or friends pose as their landlords.