If I am able I would like to fight against him doing it again.

Ideally you have the current landlord deal with it but if he was capable them he probably wouldn't be selling to you at a discount. 

Howdy BP,I must admit I have ghosted on this site for a number of years, but always felt this investing strategy was way outside my family and I's capability ($).  

The Book on Flipping HousesLike other members said, use the forum to your best capability and ask around. 

The size of the deposit could be irrelevant if you make a deduction and the tenants fights it. 

You could fight it but the mortgage company makes and enforces their own rules.I say go for it , what do you have to lose.

Block to block things change very quickly...and if you don't have students wanting to live in your properties, you're fighting an entirely different battle.

With that being said, this is a different strategy than buying a property more specifically as a vacation rental investment; I would only recommend the first idea if you were already thinking to (and capable of) buying that second home as though you would never rent it out (or only on a limited basis) - in other words, you can and plan to carry the debt service on your own - and the potential rental income is just icing.

A little web-search I did quick sounds like he could be living free anywhere from 3 weeks - 6 months depending on how he "fights" it.  

You may want to talk to an attorney ,  sounds like you have 10K out in limbo already , might be a fight to get it back