I would argue that a first step is to not care about that house and rather to care about it as one of many options. At the end of the day it is an asset, and it shouldn't matter if it is across the street or across the town. If anything, I would prefer a property that I don't live across from. What will happen when checks are late, if you have to evict them, etc.?
That being said, it could become a great deal, and you may as well work the numbers as a first step in long journey of real estate investing. The first thing to determine is normally the after repair value (ARV); this could be obtained from your effort or those of a real estate agent as @Steve Kansa suggested with a CMA. This number will be important if you plan to finance the property; if you do, you're likely looking at a maximum loan opportunity of 75% of the appraised value, which is generally a pessimistic version of the ARV. I also consider the ARV important in rentals as a liquidation guide in case everything goes wrong.
To determine your monthly costs, use a mortgage calculator online with a rate 0.5% higher than average (since it will be an investment loan) or what you expect rates to be 3-7 months after acquisition. Add in taxes, expected insurance, and property management (you should budget for it even if you plan to self manage, since you may have to move one day and your time has an opportunity cost). Then budget for vacancies (use your area's number), maintenance (large range, but normally about 0.15 the ARV or the assessed structure value divided by 330 if you're going with the government depreciation definition), and possibly a legal/eviction budget.
Your estimated monthly revenue minus all those costs is loosely your net profit. The purchase price, acquisition costs, bridge loan costs, improvement costs, and initial waiting costs (i.e. all your costs) minus the 75% of appraised value is loosely your ending cash out; yearly net divided by cash out is your cash ROI.
With all this mind, your equity (100% of the ARV - "all your costs") is arguably equally important to consider. Not only is this a safety plan (the market crashes, tenants stop paying rent, you're savings are gone), but it's also an opportunity cost issue since an unattached investor could theoretically get a deal that has both cash flow and equity.
With cash flow and equity considered, and a budget for unkowns, it's time to figure out your minimum acceptable ROI / maximum offer. Make an offer with that amount, and if you don't get it, oh well. You can try again in a week or two, but don't get caught up in going higher. The offer should have been your minimum ROI, and you shouldn't lower your standards beyond it. If you don't think there's going to be offer competition, you could go below your maximum offer, and work towards your minimum ROI with counteroffers, but you may also miss out as an other investor swoops in.