Is that 25% down on the total construction costs when you choose to break-ground? 

Be sure to factor in management complexity, market research, and your risk tolerance as you evaluate options.Without a W-2, HELOC approval can be tricky, but some lenders will work with retired individuals, mainly if you can document stable income (rental income, retirement funds, etc.).

I get bombarded with inquiries and have lots to choose from.

If you can't, then notify the tenant that she will be charged if the visit is unnecessary.The tenant does not get to choose when the vendor shows up.

You can choose to nonrenew them for no reason at all or for being habitually late.

To try to answer this myself I read this on their website (#8 in the list):Choosing to compound in the 3-year, 12% targeted PPR fund increases your overall annualized return to 14.3%.I also read through the compounding examples in PPR's offering.

If I had to choose between the two I'd say Doorloop.

I do think you need a separate entrance option or at least two entrances in a four-plex to make it easier on the LTR tenants, but if you are open about it form the start, everyone gets it and you choose the unit composition based on which ones will be STR or MTR.

Furthermore, choose your deal provider carefully.

If you choose to move forward, I recommend having a backup plan in case Hawaii outright bans STR.