Slobs had a large pot under the drain catching the water that leaked out, and of course, the pot overflowed quite often.

It's also better to drain the condensate outside using a piece of tubing because otherwise you have to keep draining the unit.

Should I get a perk test or just try to hook in to the existing drain field?

I have a coworker who's debit card was compromised and drained recently, so I am going to talk to her tomorrow and see how the bank handled it and what the timeframe was.

So I had to counter all the BS negatives he produced with pictures and documentation to assist the buyer - - 'fait accompli',  appraisal came in just 5k short the the listing price.The inspector was just way off base, opening subpanel covers and complaining on  the wiring - - just cleared by the City :sheeze:   Also made many ridiculous recommendations, including installing drains in all the flower beds.ALL such recommendations can be denied, I did, and I still closed at the listing price.Then too, the inspector & the appraiser both FAILED to cite a recent change in Code (cc 505.1) and it only got caught by the Fire Marshal and I had to scramble to get that corrected. 

Stuff is going down that drain like it or not. 

This will drain your personal monthly income and be a mistake.SFH properties generally experience a 50% expense ratio over long term hold.

Get calls about water leaking through windows, from AC units, from clogged drains, from ceilings...oh, wait, those are MY units.

No .. we provide all our tenants with a binder on their home which contains copies of all manuals for the appliances and call lists for all our service providers.All our laundry units are in catch trays with floor drains ... so no ruined floors.And, according to your math, the tenants "pay" for the unit over 3 years. 

Tenants pay for all clogged drains.