I enjoyed reading the following books1) The One Thing2) The Millionaire Real Estate Investor3) Rich Dad, Poor Dad

The current home we own is a traditional loan and is mortgaged under his name only.

Due to the constant upkeep, when you're ready to sell, your property will have much less wear and tear as you would normally expect from traditional long-term tenants.

We would hate to lose the interest write-off, so if we can’t use the HELOC as an expense we will move it to a traditional stand alone mortgage.

Rich 

Buy/Read real estate books: Specifically Rich Dad Poor Dad and any/all of the BP books!

LA city has loosened up a number of laws around ADUs as of January 1, including legalizing movable tiny homes as ADUs.Do any investors in other parts of the country have experience with buying or renting out movable tiny homes or other types of non-traditional living structures? 

Luke 19:2 "And behold, there was a man called by the name of Zaccheus, and he was a chief tax-gatherer, and he was rich."

Also my credit  is nonexistant so traditional loans are right out.

I’ve listened to many BP podcast and majority of the people on the podcast recommended reading the book Rich Dad, Poor Dad by Robert Kiyosaki.