Aside from that, I have absolutely no idea what or how to estimate the total repairs. 

He gave the tenant a reduced rent in lieu of yard maintenance and minor repairs. 

I'm looking at a duplex in the Ogden Area (about 50 minutes north of Salt Lake City, Utah). The owner has rejected several offers that have come in below asking price and is dead set on his price. That being said, I'm...

Buying a home just because its cheap isnt always a good idea , if you dont know repair costs or what to look for you can quickly be upside down on your deal . 

Let me add the house comps for about $28K (size, age, Bd/ba, distance,) has a $10K balance (plus $800 in arrears) on the mortgage, and needs about $7K in repairs to get the house to minimal living status.

The house has had foundation repair w/ a lifetime transferrable warranty.

Because they had renters insurance their company came in, did an estimate and wrote me a check for the damages and repairs. 

If you accepted the condition of the property when you signed the lease, and the home came equipped with working AC, the landlord must accommodate the repairs or replacement within a "reasonable" amount of time.

My first questions are as to why you are using only 6% for vacancy, repairs and CapX?

The basic information is below and comes from owner-supplied rent roll and 2017 figures:Listed Price: $339,000Gross Rent: $47,520 ($495/month per unit)Taxes: $1,506Trash: $666Utilities: $6,406Cable: $1,982Maintenance/Repair: $4,673Insurance was not listed in the numbers given, so I estimated insurance to be around $1,617 based on 0.003% of property value plus $75 per door.