William Dickey - You have two choices

My favorites are Black Diamond which meets in Waltham and Worcester in alternating months, Chelmsford REIA (NEREIA), and Justin Silverio's quarterly meet-up. 

SFHs aren't my first choice for house hacking but willing to do so for the right deal. 

Still, it's a good idea to be choosy in your choice of partner(s).

Three choices.1) Experienced agent2) New agent who wants to get things done3) Lazy agent who does just enough. 

I am aware of the alternative lending options lease options, partnerships, bank mortgages etc I am sure their is many more. 

There may be another option to your current choice of cutting the rent or cutting the renter loose...If the renter has been able to pay $2600/m for the last three years, they may have some other financial accomplishments to be proud of.  

Do explore why it is priced lower than its alternates.

Success is a process, failure is a choice

Alternatively, suits for specific performance compelling someone to SELL their property can be successful.The theory is that there're many buyers for a given property, but there may be only one "dream home" for a buyer.