That said, here is how I would proceed...For some background, I used to run an STR management company in SATX and we peaked at about 35 properties under management. 

At the time, I already owned a few properties.

@Drake BackmanBigger Pockets is a great place to find a tax strategist specializing in real estate taxation.A good real estate tax strategist can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding a tax  strategist specializing in real estate taxation, business taxation, financial planning and tax planning.Consider working with your tax strategist remotely to expand your options.I would also recommend looking for a tax strategist willing to work with you throughout the year.

This is a great place to connect with people so take advantage of all the great resources.

I dont know the delivery time on a ADU but I'd assume same with site plans and zoning. but how do you get your money out of that?

This is generally correct, DSCR loans do not look at all at your personal income.  

There are experienced PM's on here such as myself willing to coach and give advice. 

This was a huge investment for me at the time.

Has anyone here used them for a Roth?

Triple net lease property at the end of the lease periodwhat do you think?