You can do a ‘cash out’ refinance on the rental home as a permanent fixed 20-25-30 year loan to pay off the Heloc on the primary and most likely the equity line on the primary permits a ‘re-draw’ to utilize again. 

You can use that right of way if you don't install permanent structures, right?

Not have a permanent eyesore

Ok, so definitely not looking for legal advice here....But...I know someone who has sold a business in Puerto Rico (7-figure sale) and is looking to move that money to the United States permanently.

Some of us apparent should have been raising rents a lot more, a lot more OFTEN, because the cap is almost insulting - limited to 3 percent per year.I just read that the legislature in the County expects to make the cap permanent, I believe still at the 3 percent level.  

If the deal doesn't pencil like this, then you're taking on a heavy layer of additional risk by using the heloc for permanent financing - you basically don't have an exit. 

This property may not be quite ready for permanent financing.

RESIDENCE Definition & Legal MeaningDefinition & Citations:Living or dwelling in a certain place permanently or for a considerable length of time.

I'm a military veteran that came to San Antonio in 2018 as part of a military PCS and loved it so much, we decided to make it our permanent home.I'm also a fellow real estate investor and a mortgage lender, so I'd be happy to be resource for you as you're preparing to make your move here. 

Find a bank that'll lend you the money to build and put permanent financing on it.