Is this typical for when a tenant vacates the property early?

One thing to look at is the water and sewer... that's a large expense that would be good to get in the tenant's names if at all possible, especially if that's more typical of the area anyway. 

If a typical 2bed/1bath unit goes for $700 in your market, it may be hard to rent yours at $750 to defray the costs of mowing.

Is this typical of AZ auctions?

See this recent article if you don't know what I'm talking about:https://www.biggerpockets.com/renewsblog/work-with...The search feature didn't seem to provide any brokers in the KC area (where I invest), so I thought I'd post on here. 

Typically, you will be able to tell within 30 minutes if you have the comfort to work with this person for a length of time. 

I just wanted to hear thoughts on how much you would typically assign for before you go for a memorandum of Contract or double close.

Typically our closing costs are under 1k for anything under 50k.

His niche is very different from what I am familiar with, so I'm having some trouble running the numbers and I thought I'd turn to you guys.So he(my relative) has been doing this exact strategy for a few years and has done a good number of deals(~40) so I'm confident he knows what he's doing, but his strategy is as follows:Buys a distressed trailer(mobile/manufactured home) repairs it, and then sells it to a tenant that either can't qualify for a normal  loan, or doesn't have the money to purchase a normal home.So for this particular deal, the numbers are as follows.Purchase price of $5750.Rehab of $8000.Rehab should take roughly 3-5 days.Selling we are assuming a month, but he says typically less.Taxes are around 600/yr(which the new owner will pay) but accounting for the month we have it, $50.The lot rent for the trailer is $350.Closing costs would be maybe ~$100.We'd sell it for ~22k, with a down payment of 2k at 14% interest for 75 months.So our purchase and rehab would be ~$13850, plus a month of holding for $14250.We'd get 2k back bringing our investment back down to $12250.We'd bring in 400/mo from the mortgage payment.As far as I can tell, this would be about 35-40% cash on cash return.Please go over these numbers and tell me if I'm missing anything.

His niche is very different from what I am familiar with, so I'm having some trouble running the numbers and I thought I'd turn to you guys.So he(my relative) has been doing this exact strategy for a few years and has done a good number of deals(~40) so I'm confident he knows what he's doing, but his strategy is as follows:Buys a distressed trailer(mobile/manufactured home) repairs it, and then sells it to a tenant that either can't qualify for a normal loan, or doesn't have the money to purchase a normal home.So for this particular deal, the numbers are as follows.Purchase price of $5750.Rehab of $8000.Rehab should take roughly 3-5 days.Selling we are assuming a month, but he says typically less.Taxes are around 600/yr(which the new owner will pay) but accounting for the month we have it, $50.The lot rent for the trailer is $350.Closing costs would be maybe ~$100.We'd sell it for ~22k, with a down payment of 2k at 14% interest for 75 months.So our purchase and rehab would be ~$13850, plus a month of holding for $14250.We'd get 2k back bringing our investment back down to $12250.We'd bring in 400/mo from the mortgage payment.As far as I can tell, this would be about 35-40% cash on cash return.Please go over these numbers and tell me if I'm missing anything.