People get excited about the 'guaranteed rent' from Section 8 programs, but they don't realize that tenants can lose their voucher, there is a maximum amount the program will pay based on the Fair Market Rent for your area, and that you must have a yearly inspection, even if no tenant turnover has occurred, and that it's very common to fail these inspections, meaning you have to fix things and then be reinspected in order to continue to qualify. 

They gave 30 days notice (actually 37), they agree to let me market the home during their final 30 days tenancy, they paid a termination fee equal to two months rent, and they remain responsible for rent and utilities until their termination date.If they leave and it still takes 60 days to find a new tenant, I've lost almost nothing.If they leave and I place a tenant right away, I made an extra two months of rent.I actually make more money on the vast majority of early terminations.

That seems pretty clear which is why it's a common point in contracts, "applying for financing" is specifically measurable, if they can't prove to escrow they applied by a deadline specified in an offer then that should be a pretty clear breach and the EM should be collectable by the seller. 

I less this is one of those somewhat common land lease deals up in the northeast, I know of no way for someone other than the land owner to “own the house”.  

Regarding Condo Exterior repairs, it is also common for a major repair to require additional funds over the HOA dues, so a Special Assessment is often levied.   

Also, not sure how this would be set up from a utility perspective.Even with all those things, living close to free sounds pretty good!

I rent out the other 3 bedrooms now, which more than pays for the mortgage and utilities every month.

I put in brand new ceiling fans and vertical blinds 2 years ago. they also charged me for a utility knife and extension cords!

It is common practice to raise rents to market rates. 

This sounds like the price is too high or they have found a better deals after closer look.It really depends on many factors, like what is the exact location, what is the shape of the lot, how is subdivided,  how is it accessed, how far are the closes utilities, are those private / public, is there any public access, are the access sufficient or do you have to build a new roads etc.