Typically you can't rent out a single apartment unit because of sublease clauses in your lease.

Gated community, 3/3/2car 1512sf built 2006 Monthly costs Hoa 66, insurance 57, management 89, taxes 58 rents for $1125 $212k value = $170k loan @ your 4.612% = $873 total $1143 (minus $18/mo)In the last year I had to paint the trim ($500) and fix clothes washer ($237)#2 preferred single story model, not Gated community, 3/2/3 car 1456sf built 1993Monthly costs Hoa 0, insurance 44, management 90, taxes 64 rents for $1125 $250k value = $200k loan @ your 4.612% = $1027 total  (minus $100/mo)In the last 2 year I have had zero repairs #3 non-Gated community, 3/3/2car 2200sf built 2007Monthly costs Hoa 57, insurance 46, management 98, taxes 74 rents for $1375 $264k value = $210k loan @ your 4.612% = $1078 total $1353  (plus $22/mo)In the last year I had to replace the stove ($590) and fix a sewer line blockage ($125)In north Las Vegas sewer is included in garbage,recycling/water bill from the city. in Las Vegas I bill the tenant for sewer per the lease (about $250/year)

As far as your loan options, discuss that "Solely" with a Lender, as they will address all of the requirements including your self employment status and your current lease arrangement and how they affect qualifying for a loan. 

but it would probably benefit you more to have a lease and report the income. 

One is a lease agreement to rent the property the second is the agreement to purchase. 

He told the renter that they have to go after the lease ends, which is about when the violations need to be addressed. 

Rent is a market-reasonable $1995/mo and it's been vacant for just 1 month (due to breached lease) out of the last 8 years and 5 tenants.

The lease for the tenants who live in the top unit is over at the end of September and I am currently in the process of finding new tenants for the top unit.I have one potential new tenant (PNT) who is local and requesting to see the unit in person and a second PNT who is working in Seattle for the summer.

What is the best way to remove a person from a lease?

I have a tenant who can be erratic & make poor decisions that have effected my condo community and pissed off the HOA, neighbors & me to no end, so I've chosen not to renew his lease.