I love the idea of "house hacking", and the home we have now is only a year old so not much value to be added.

Any income I earn will just be added income until I feel I can go full speed ahead and dedicate more time to the RE industry.What are your views on my choosing to join MAR (Massachusetts Assoc of Realtors) and NAR.

With option #2, you'll be adding two units and you obtain title to an additional piece of property.  

You need to ask for a mortgage payoff as of a certain date, then you need the interest rate to compute odd days interest or a per diem rate to be added onto that payoff for each day the mortgage goes unpaid, until you get to the next scheduled payment, if made then the payoff must be recalculated.  

Some are requiring that they be added if not installed at construction time.

And a fourth carrier may be added shortly.

Chapter 10 "Real estate rewind starting over" that sounds great, will be adding that to the funnel. 

Here’s your answer:Depreciation (Line 13/14) – can be added BACK as income Business Use of Home (Line 30) – can be added BACK as incomeVehicle Miles (Line 44A) – can be added BACK as incomeUn-allowed Meals and Entertainment (Line 24B) – is subtracted FROM your incomeIf you have a choice on HOW to deduct the items above then you want to CHOOSE to try to deduct them in those categories.

Then you can do the BRRRR strategy, when there's value to be added.

Should these things be added via an addendum?