The way we have done it is to borrow from my 401K, when I pay mine back borrow from hers and repeat this cycle so we always have one we can pull from. 3) This option will be controversial but I have taken out private money loans with family and friends. 

@Paige Corsello...You could call your bank contacts and find out if they are broker friendly.

I've read BiggerPockets' Real Estate Investing book and am particularly interested in the house hacking strategy, as I'd like to move out of my current living situation.Our main dilemma is choosing between a single-family home (renting out one room to a close friend) or a multifamily property like a duplex or triplex.

Maybe knock on a few neighbors doors and ask some questions.I've found in Texas most people are pretty nice and friendly...the tax assessor people, the appraisal district people, the sheriff's office, maybe the county commissioners, etc. 

I am always looking for good sources of information, which I might share with our friends who are reading.

Quote from @Jemini Leckie: Hello, I am trying to understand the Orem, city code to determine if I am allowed to rent my basement ADU that I currently live in two a couple cousins and their friend.

Im not a realtor, but i do know of many investor friendly agents here.

Fortunately for me all my friends have already called dibs!

If not, I can put you in touch with an investor friendly agent in the area who can help. 

Additionally, the price point is still cheap enough to find the 1% rule and positive cash flow and it's super landlord friendly (so you will never have to go through a 12 month eviction or anything close to that!).