From there, you can consider the SQFT, beds/baths/garage/basement/condition etc. 

Every now and then, I find sellers who have their hair on fire and come to hate the business they've built and want OUT.Until you know the seller's motivation, it's really impossible to say whether it means anything about market conditions.

If you're not contemplating rehab or are already in leasable condition, you'll be able to get a 30 yr fixed against the property on a DSCR loan (w/o proof of income, property DTI, etc).

Go for the stars and maybe hit the moon.Also, don't run the condition down, but let them know you'll have about $XXX in repair costs. 

My roof again was in good condition with no issues or need for repairs. 

How about the condition of the property?

What is the condition of the units and what kind of maintenance can you expect?

Obviously there were some caveats there... we didn't want F class properties, and we wanted them to be in at least descent condition.  

I set the appointment and went to meet the seller and check out the house - the home was in great condition, just original to 1962 so it was a 3 bed 1.5 bath cosmetic fixer.

The least destructive way to check for a leak would be to insert one of those fish cameras into the register (like the ones used in cars to check cylinder condition).