Could the buyer attempt to buy the property in 5-10 years via conventional financing?

She is attempting to buy time with you.Go over to your rental property and post the 3 day Pay or Quit notice on the door. 

I attempted to post it but got an error that posting contact info is prohibited.

I’m pretty handy, so I started tinkering with the system.After many attempts, I fixed the problem and moved a nice family in.

Also, sometimes courts have not enforced late fees in many cases so in the event I do find myself in court attempting to collect they won't refuse to grant the full amount of rent due.

Markets are like bathtubs, when the water rises for whatever reason, be it interest rates, inflations, lack of demand, bubbles collapsing, or whatever one can conjure up, the bathtub will get deeper, and those below the water line drown.Now you can spend your time thinking there is some other paradigm, but all of them are the same paradigm, the depth of water in the tub, which is the cost of operations to stay afloat in a business.If rates go up, lets say they hit 6% or 12%, you will see two things happening. 1st those who can not afford to stay in the game will attempt to exit.

I attempted to get a LOC on my apartment building but so far lenders I've met only offer a cash out refinance at 65% LTV with 3.8% interest for 5 years.

I was curious if getting a cert would beneficial if I am looking to move into a larger role or attempt to work for an outside company. 

Having scripts to use on any phone calls you attempt.  

This is a site with extensive knowledge and I am sure you can understand why those who have been successful would prefer to see people attempt to learn first and ask for clarification second.