In terms of feedback from our team, we’re leaning towards buttoning down the hatches, keeping rent increases low, and focusing on maximizing occupancy in our New England markets.

By the way my last local purchase was dec 2021 which was before rates started increasing (just a few months before, i had good timing - when the fed states they are going to be raising rates, it is a good idea to believe rates may go up).  

I'm considering increasing that last one as property values go up.

And lastly, I search FunishedFinder listings nearby, find comparable properties, and track the listed rent for a few months (does it increase, decrease?).

On the other hand, investing in some repairs (if financially feasible) might significantly increase the property's market value.Remember, each property is unique, and what works for one might not work for another.

Sold with extra lot for value increase Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

I agree with @Jonathan Greene that the question is vague, so my advice will have to be as well.The short answer: MTRs are real estate, so just like all real estate, any place that can long-term-rent cash flow with increasing jobs/population can be a suitable site to purchase. 

Another rental is in a great area but has struggled recently due to increased competition from newly built apartment complexes.

Quote from @Lionel Quiambao:  ... and maybe throw in the option for the tenant for more speed at an increased rent to cover the additional payment. 

The entire lots level has to be increased.