It is common for the threads at connections to deteriorate and become weak, causing leaks, especially where transitioning to different type of material.

She's owned the building since 1996 and it's in great shape.I agree that she would not renew a lease for problem tenants (although her lease is weak in several areas like not prohibitings occupants not on the lease, generous due date - 15th - and minimal late fee - $25). 

Property is roughly an hYou have to know your weaknesses.  

any weak points in their deal?

For example, I frequently can see that a property gets quitclaimed to a friend or a relative and then undergoes a cash out refi so its an indicator of a weak borrower.

Now, if you make a lower, reasonable offer and it's accepted, adjusting your offer to costs of deficiencies discovered is done everyday and not a thing wrong with that.It's not unethical to understand the weaknesses of the competition and use that to your advantage in negotiating.

You can spend your time being a real estate investor and landlord, which literally hundreds of thousands of people are successfully doing to build generational wealth, or you can spend your time being a debt collector, where the industry average success rate is about 20 cents on the dollar. http://www.evicttv.com/episode...You have 168 hours in each weak, no more, no less.

Don't get weak and let them stay, you will just be back here on this forum in 6 months asking for advice again...

It used to be that agents and lenders did not know how to navigate through the VA loan guidelines and steered veteran/active duty clients away from using them because of their perceived weakness and "additional fees and paperwork".

Every year learn a new major skill: accounting or whatever is your weakness.