We have loan contract and it was supposed to be a quick loan, however the person failed to continue to pay after they made second payment. 

@Aaron The two parties have agreed that the lease continues on a month to month basis until a written notice is given but the specifics on the notice are deleted. 

I am unsure whether purchasing a condo in an area where I know for sure the housing market is on a continual steady growth.

If she ask me to leave I have decided I am going to refuse to leave and probably terminate the contract effective immediately based on the grounds that they lied on their application and continue living here. 

I continued to set aside $2,500 per unit until I reached $20,000 which works out to about $1,000 per unit (I have 19 units).

Most HELOCS have close to the same rates, so concentrate on those with the highest CLTV and the additional features you might want? 

They resigned a lease with me on a continuing month to month basis.  

I was thinking about changing my offer based which would hedge myself against an eviction and vacancy over winter. (8-10K reduced offer) I'm not sure if I should continue or not.

The house has had continued use as a duplex so I could purchase and leave as is but I could not go to a triplex as it was not a permitted use under the newer or older zoning...

Now they will consider less than two years with some evidence that the business will/continue to be successful i.e. you're in the same industry you were in previously, you bought a thriving business with an existing cutomer base etc..