If you have no cash, no experience, and bad credit, you're not going to do this by yourself. Commercial loans are at least 30% down right now, with limited possibility for owner carry. Money is incredibly tight. Lenders fear rates are going to jump, which will tend to reduce the value of properties like this.
Lets figure out if this is a good deal, first. I get an average price per unit of about $21,000. That's somewhat promising. Rents will need to be at least $400/month, average. $500 would be better. Less than $400 and this is a loser, even when its stabilized.
The $2million purchase price is just the start. This place has a huge vacancy. Why? Is there no demand? Is the place trashed? Are the tenants that are there criminals that scare away any new applicants? You need to find out. Regardless of the details, you have two additional costs. One is the costs to fix whatever is wrong. Maybe that's rehabbing the bad units or the entire place. Maybe that's evicting bad tenants. Whatever it is, it will cost you something to fix. Then, there's the costs of holding the vacant units until they're filled. That includes both the lost rent until they're filled, plus the costs (advertising, promotions, special rent deals or reduced deposits) of filling them.
So, you need to figure out those costs and add them to the purchase price. That's your real acquisition costs.
Now, lets back into a good price for this place. Apartments are valued purely on income. If the broker starts in with cap rates or comparable sales, be wary. They're aiming at a newbie (like you!) and hoping they don't really understand. Once stabilized, the best you will manage is for all expenses (including vacancy and capital expenses) to be 50% of the gross rents. Plus, you want to make something out of this. A common goal, and I'm sure in works in Dayton, is $100/unit/month.
So, add up the total expected rents to get the gross scheduled monthly rent. Subtract $9,500 ($100/unit, 95 from your other post.) What's left is your max payment. Commercial loans are going to be more expensive than RESPA residential loans. So, I'd use 8% unless I had information to indicate something different. You're also unlikely to get a 30 year amortization. So, I'd use 20. In reality, you're likely to have a 3-5 year balloon payment with a loan like this.
So, now use the payment, 8% and 20 years to figure a max loan amount.
Now, some folks might say add on your down payment. But that's making your money work for free. Further, you're going to need an investor to pony up this money. So, just use this max loan amount as the starting purchase price.
Now, subtract off those costs you figured out. This gives you your max purchase price.
Here's the bottom line. Don't do this. You don't have the experience or the financial ability to do this. You're going to have to bring in an investor, either as a lender for the down payment, stabilization costs, and working capital (If you don't have $50K in cash on hand and ready to spend on a new roof you don't want to own this sucker) or you're going to have to bring them in as an equity partner. A lender like this is going to be looking for 12-15% and an equity partner even more. This will eat you alive.
Start with a few SFRs. I'm absolutely certain you can find good deals there in Dayton. We have a guy in our investment club here who offers Dayton deals, and I've researched it a little. Cut your teeth with half a dozen SFRs, buy a 12 unit, then jump into this.