If I were in your shoes, I'd look to first buy a 2/3/or 4 flat since they are usually more expensive and take advantage of getting a conventional 5% down loan.  

Turn the tiny 1/1 into a laundry room or storage or something other than a rentable unit.

It’s a great unit with a ton of onsite storage I could easily rent it out at market value.

If I were in your shoes, I would go for the large single family.

It has 30 pads, plus 2 SFH rentals, plus an office/storage building and an unused laundry building.

Less locations to manage, less focus on the borrower and more on the NOI of the property, more potential cashflow and valueadd, fewer mortgages, economies of scale etc.Also consider other commercial properties like office, retail, storage, industrial etc.

If there's anything of value (sentimental or monetary), then I hold it in storage for 30 days just in case the tenant comes back for it.

We first told the city we wanted to build an "office", but they nixed that and stated unoccupied is only a garage, storage or shed.

@Andy Crooks phase 1 reports are typically required for developed properties because the operations can involve storage, use or generation of hazardous materials (e.g., dry cleaners, light industrial), building materials may contain hazardous materials (e.g., asbestos, lead paint).  

@Dallas Roark Hey Dallas, feel free to reach out, I started in your shoes with our first rental a while back and have grown to 35+ residences personally, and have helped many others on their financial journey.