I bought a property on the county auction site however the satisfaction of mortgage that was recorded now is found to be not legit, forged  and never paid off. 

What are your experiences and recommendations on this?

If someone is concerned, I recommend they buy umbrella insurance and call it a day. 

Having said that, we try to time it with unusually high income (like selling stock or getting big bonus or a big spike in biz income).

Without using a data site, this will give you a free and easy idea.But, why are you thinking STR and do you know what it takes to be successful with STR now?

Any recommended companies out there?

Velocity of money, or speed in which you can complete a BRRRR investment and repeat, is key to success, and refinancing with the shortest seasoning requirements is highly important.Loan terms and interest: Cash flow is also an important consideration for a refinanced rental property, so attaining a low interest rate, as well as other aspects of loan structure (term, amortization, or interest only, etc.), plays a big role.Generally, there are three main refinance options for BRRRR method investors: Conventional loansBank/credit union loansDSCR loansConventional loans are generally defined as loans originated under GSE (Fannie Mae/Freddie Mac) rules and guidelines and securitized.

Many of the good tax sale properties are getting bid up online. 

We've been educating ourselves on creative financing and Subto and would like to know if there are recommended professionals in the DFW/ Texas area who are experts on structuring a creative deal who can essentially advise us and take care of the process for us. 

Any recommendations on education for what to look for in a HELOC?