In particular, I understand that before partitioning I will need to have my mortgage lender release the lot from the lien.

Or in other words, the rent received from house hacking would cover our housing costs (mortgage, property tax, insurance, repairs, utilities).Upon research however Oahu seem to be a high cost and low cap rate area similar to SF where we currently live.

But high level yes, that is how hard money mortgage loans are going to work - if theres a default --> the path proceeds toward a foreclosure since these loans are at their base secured by the real estate

You need someone who clicks with you personally before engaging in a mentor/mentee relationship with the dedication and stress that may be involved.Where to find a mentorStart by looking within your existing network.

We need to secure loans/mortgages externally in order to get started so wondering if we should start a company/partnership or if it’s best to do this as individuals.

To fix this, the sponsor / capital raiser can do one of three things: - Capital call existing investors (who hate this and it is often perceived as a black mark on a sponsor's track record)- Let the bank foreclose, wiping out essentially all equity (obviously, this is also not a great resume builder)- Raise exceedingly expensive second position debt at a 12-15% interest rate.

I like the strategy, if you can help someone get caught up on their mortgages it works for everyone. 

I’ve talked to a couple mortgage folks and haven’t gotten any great options yet. 

A sign company will have to tear down an existing sign to put a new one up.

Here's what I've been doing: I'm allocating 100% of the mortgage interest and half of the property tax as deductible.