I want to avoid the break up and she moves out and he stays and can't really afford the apartment? 

If your numbers are accurate, you are far below market and if they are related to the previous owner, it's doubtful they can afford market rent, though you could have a conversation and ask them as a courtesy.

This will allow you to get a realistic understanding of what you can/can’t afford and a baseline for what you need to do to improve you position and any additional capital to save.  2) Lenders will request the below preliminary information.Name of entity (organizational chart if applicable)Personal Financial Statement (PFS)Schedule of Real Estate Owned for each borrower/guarantor (SREO)Resume/Bio for each borrower/guarantor, if applicableBank statements for verification of depositsLast 2-3 years of tax returnsI recommend using a mortgage broker in your area that is able to connect you with top commercial lenders to get you multiple competitive offers.

When inflation sets in, interest rates tend to rise, making the cost of affordable single family homes even greater.

Your goal, for you parents, should be to MAXIMIZE sale proceeds so they can afford the assisted living facility.

It is a very private community that is well maintained, but prices are still very affordable.

She does have a daughter that is attempting to help but cannot afford the rent. 

House hack a multi in more-affordable Providence.

My market is quite expensive and therefore difficult for new investors to get involved – I knew I would have to house hack for my first property to be able to afford it.

There is nothing wrong with denying a Sec. 8 tenant if they can't afford the rent you are seeking.