The tenant isn't paying rent so it's reasonable to assume they aren't going to pay the electric bill.

We have done it both ways where we fund purchase and they cover rehab but if the individual is less experienced we do not do it that way, we have them put more money into the deal from the start and fund the draws, reason why is we also had a deal where the person said they would do this and never did anything and property sat and loan matured and it was a pain.Just recognize you will still not get 100% financing for the purchase, so you are putting money in up front. 

Assuming your property is in Utah (like your profile indicates), here's the state law from a basic internet search:In Utah, a tenant who abandons a rental property without notice is liable for the lesser of the following: The rent remaining on the leaseThe rent plus the difference between the fair rental value and the agreed-upon rentThe cost to restore the property to its original conditionThe landlord can also remove the tenant's belongings and sell them if the tenant doesn't claim them within a reasonable time.

There is a multitude reasons why I like small multi-family properties over SFH.  

I'm considering investing in STR in Hawaii to diversify my investment portfolio (mainly for capital appreciation) as well as it being a regular vacation place for my family.

I'm a fellow real estate investor and I own properties throughout New Hampshire and Maine Southern Coast, I'd love to connect and bounce ideas off each other. 

Currently renting the main house as a LTR and the ADU as a MTR.

This reminds me of a police officer  pulling somebody over without reasonable cause and asking to search their vehicle and if the person does not consent, they’re saying you must have something to hide.

@Kyle Knudsen, There's a couple reasons why this wont work unfortunately.1.

The only reason you’d consider a 1031 is if you have more than $250k in gains (if single) or $500k in gains (if married.).