My comments apply to the hospitality business in general. 

Generally "multifamily" in real estate will tend to mean 5+ units, but if looking for 2-4 units your current options that you listed are pretty good - but would not apply to anything bigger by unit count

Yeah, It's a ton of money. my thought would be after installing the solar, separating out the meters and then having the tenant pay their own electric, but I would keep the meter with the solar running thru it and apply the unused credits to electric accounts on some of my other properties, and not offsetting the tenant's meters.

This will be my first property and I plan on house-hacking (hopefully a multifamily) and applying the MTR strategy.

Before wasting time looking for properties or spending a lot of time on projects, they should make sure they can get the financing because a) financing might not be available, b) they might not qualify or c) the cost of debt might be prohibitively right.Another mistake investors make is believe that they can apply a US strategy or financing model overseas.

You can even just re-write your new lease for their same rate of rent and expiration date, but with YOUR terms and conditions that apply to you being the landlord.  

My family is in the initial stages of a move to Japan and  applying for a business manager visa.

I am starting a new rehab and was considering applying for a Home Depot commerical credit card.

I will study these two procedures and ensure I know which is being applied.

2) In a cash-refinance, let's say the new appraised value of the apartments is $1.8M, does this mean you can apply the $300k into the HELOC and not pay taxes?