If both the criteria make sense, I am looking at the property in person and planning to make an offer if within my budget.

Generally ive offered equity or debt on deals but never on the operations.

You could look for a PML (friends or family and offer to pay them interest but lower than what the HELOC is). 

We would prefer medium term so that we can still use the property and also would love to offer our place to those who are temporarily displaced due to the storm.We also are considering a switch to LTR, we already have one of those and know what to expect with that. 

They offer interest-only loans, don't charge for appraisals unless the deal actually closes, and have great customer service (they actually close on time unlike some of the lenders my clients have chosen against my advice over the years who ask for my time for underwriting the day before closing).

I have seen they are offering something like 16% returns.

With high property prices that is not easy to do and also be able to offer housing to anyone at any great discount.

Although we decided it wasn't a good fit, I'd surely appreciate your generous offer to share GC's PM's etc. 

When I moved the properties to an LLC, USAA informed me that they did not offer commercial insurance, so I had to move to another insurer. 

My uncle has an offer he pays all development fees and then gives the guy who engineers it all 33% gross cut.