Hi hive,I am new to investing and trying to learn from the different options out there.

.- Optional Benefit: If you believe an elevation certificate shows your property is at a lower risk than FEMA's assessment, you can submit one to potentially lower your premium.

The “borrower” would have an option to buy back the property if (1) all lease payments (“mortgage payments”) have been made and the borrower/seller pays is the sale price/loan amount in full at the time the option period/note matures.  

HELOCs are definitely a good option for financing BRRRRs.

I have been told to stay away from lease options in Texas.

Financing options do exist: hard money loans, renovation loans, and some traditional mortgages can be used on distressed properties if criteria are met.

There's zero reason to do this when there are plenty of options to avoid it. 

Also, within this approach, the option that attracts me the most is purchasing and installing a 'tiny home' on a campground that allows it.

Since you want to aggressively invest in the near future, you will need cash and the 30 year option is the right one for you.

Several of the contractors offer helical piers but don’t seem to think they’d be a more cost effective option - we can directly ask about this again.