Is this two units or do you mean you'll have roommates?

The single family home in front is usually occupied by young professional couples or a couple of roommates who all qualify for the rental terms (i.e.- three times the rent for each individual, not collectively).

If you don't like humans enough to take roommates -- I hear you!

Pandemic has hurt the building and has had some vacancy issues as of late since the units usually rent to young 20-somethings with roommates who aren't renewing right now.

The tenant who lives their is on a fixed income with a roommate and has like 7 cats.

I have a roommate I found to live with me that pays me $700 a month and splits electricity/utilities with me. 

Now I am a BRRRR investor on town homes in Baltimore CountyThat being said, where can you see yourself living and having roommates?

He has a roommate in the current arrangement.

Key criteria for a successful SFH househack:Suitable zoning criteria, i.e. room rental laws (county by county)Within 1 mile of hospital, major company HQ, public university, and private university (to attract 20-somethings)At least half as many bathrooms as bedrooms (i.e. a 4 bed / 2.5 bath could work, but 4 / 1.5 could get sticky)Plenty of driveway space / street parking (1 per roommate)Plenty of kitchen space (since the kitchen is the most occupied room other than individual rooms)Basement or side entrance entry point (i.e. if you wanted to turn the basement into your living space, you could enter from a side entrance)Un-involved neighborhood community (cul-de-sacs can be the worst spots)Turn-key quality (i.e. you won't need to fix much of anything when you move in)This list is by no means exhaustive, but things to think about when you work with an agent on a SFH househack.

If you can buy a house and either get roommates to pay the mortgage and other expenses (ie you will be living for free) or a duplex where you have your own half (or rent one unit and get a roommate) you will be better off and closer to your goals.