If they're just going to be there for an hour to two during a time frame you have set for prospective people to view - give them directions that prospects will need to reach out to you for lease details/moving forward.

House hacking is not only a phenomenal move for investors starting out, but it's a common strategy in expensive markets like Boston.

I get the sense that you have an axe to grind against PPR, but it is not due to anyone's actual fund experience.Conversely, what was the experience of virtually every buy and hold stock and bond mutual fund investor, or single stock investors, in that timeframe? 

I'd simultaneously search for duplexes especially those with value-add potential.Regarding volume, the Suffolk towns with the most listed 2-4 family properties since '23 have been Lindenhurst (46), Huntington (22), Patchogue (21), West Babylon (16), and Bay Shore (15).Riverhead has had 10 listed small multifamily properties in this timeframe so it isn't too far behind. 

She has a duplex, one unit was owner occupied until her stroke; other had been rented until the same timeframe.

 $12,000 in gross income, less $2,400 in expenses = $9,600 yearly return$9,600/$100,000 = 9.6% cash on cash returnFinanced:$20,000 down - financing $80,000 at 7%Monthly payment (P&I for 30 years) $532With Taxes & Insurance $732/monthNet income: $1000 - $732 = $268/month * 12 months = $3,212/year$3,212 / $20,000 = 16.08% Cash on Cash returnI would also point out that interest payments aren't really a negative on the financing side, because your tenant pays all the interest.  

@Griffin Malcolm Solar panels can be a good investment if tax credits and energy savings offset the costs, but their ROI depends on your short timeframe.

Naturally your relinquished property must be sold before you can take title to the new property, but its a great way to make the process as smooth as possible.Even though the time frames can feel daunting I find that 95% of exchanges from my clients are successful.

And it is very inexpensive to use. 

Quote from @Zachary Deal: As others have mentioned 2 -3 months would be the typical time frame for what you mentioned.