House hacking can reduce living expenses but may limit roommates or share space.

The story is long and not enough space.

I’d love to hear from anyone with experience in this space—success stories, lessons learned, or even things to watch out for.

Personally for our company, since we entered the 1st lien space a few years ago, product availability with 2nd liens isn't a huge issue.

I had arguably 1,400 sq ft of crawl space incapsulated with the dehumidifier for $6,000. 

In general they will add the ADU only if it is existing living space such as workshop, bunk house, office, etc.  

He or she would then pay for the furniture for the space and pay movers to install it.

I am planning to convert the living room in the property to bedrooms and want to use the garage as common space (have a pool table or a Foosball table, a couch etc).

We need to go back and refi some just in one of our names in order to free up some space. 

The Real Estate business in general can be learned by meeting and having a local 'mentor' walk you through things...classes, seminars, and the like are great "motivators" and open your eyes to new ways to do things, give you energy and connect you to others in the space.