Also, make sure the new combined purchase exceeds (not just matches) your previous sale.

I've had social workers working for agencies who routinely defend their client's behavior, as if violent, argumentative behavior, domestic violence, illegal drug use, violation of lease terms, and of course, always combined with non-payment of rent, were just a "cultural" difference. 

I’m interested in it because all of the ground floor is occupied with below market rents by a print shop, sign shop and laundromat with 17 washers & 18 dryers (which is owned by the building owner).

@Shawn Munoz right now my cashflow, combined with refinancing is to acquire more properties.

The accessory dwelling unit may be combined with a junior accessory dwelling unit described in subparagraph (A)."

New flooring, new kitchen with quartz countertops, new bathroom with new plumbing, added in unit washer and dryer, added better than standard rehab kitchen appliances, converted the place to 200amps from original 100 amps, new plumbing and pipes, etc.The house has appreciated to about 220,000 in value comparing it to other similar properties that recently sold in the complex.

If that combined lump sum is enough to have a major negative impact on your parents lives if it were to be lost/diminished significantly then you might want to reconsider taking this idea any further.

I have about $6K in liquid cash available to me and I am planning on liquidating a combination of retirement accounts from my previous employers.

Purchase price: $150,000 SFH 3 bdrm 2 bath, pets allowed, private fenced in yard, washer/dryer/refrigerator/AC wall unit provided What made you interested in investing in this type of deal?

I'd move on instead of trying to find the secret combination of factors, which probably doesn't exist.