Massachusetts Premier Buyer Brokerage
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Will you have good tenants?
Are the rents worth the work?
Is the neighborhood increasing, decreasing, or staying the same?
What about the town?
Are they in the same condition?
Are they the same size for your own space?
... and many more questions before you arrive at your own answer.
I would contact a local real estate professional to help with this answer.
(Please note: when you choose an answer as a Best Answer, or at least give a thumbs up, it helps those who answer questions here.)
I believe the original questioner is a senior citizen, and therefore would be most interested in long term financial and personal security. However, if Stwig pitches in, I'd go with whatever they say.