Realtor, it's not consistent, it's self employment with little to no help.

There are 15 protected classes in MA.The state actually employs "testers", who will pose as home renters or buyers and try to get you say or do something they can prosecute you for. 

@Kristina Anderson:Clearly an example how the errors or actions of an agent or employee.. can become the liability of the employer. 

Since they get a lodging premium from their employer, as Adam said they will pay more than your standard tenant. 

No DTI, tax return, or employment checks.

Back story is, I’ve done the unthinkable and relocated with no housing or employment lined up, however, I have a very strong work history.

In this case, if our girlfriend is self-employed and not doing business through a Corporation and you paid her more than $600 a year, then you have to file a 1099 form for her.I recommend to consult your accountant to figure out if your rental activity is counted as a business or as an investment.

You are not required to give more details and, just like an employer (and for all the same reasons), you should not.  

I have 3 rentals now and the banks aren't very keen on giving me another mortgage with my self-employed income. 

First, look at lists of cities ranked by employment, employment growth, net in-migration, cost of living and other economic factors and find the top 3 on those lists and then start looking at properties and neighborhoods in those cities until you find one that grabs you.