The Seller clearly doesn't need the money immediately or he would have evicted these tenants and replaced them with renters that actually pay rent.I would offer to purchase the building at the listed sales price.

@Matthew Gilmore specific to Philadelphia, we need to know more about the neighborhood. 

Some common names you'll see thrown around a lot: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend you search for each of those apps online and see what they offer, how much they charge, etc.

Any specific investment strategy like house hacking?

Reach out if I can be a resource or offer assistance!

Lenders can have limitations on those without a US SS # but others offer specific lending to 'foreign' nationals.

INNAGO is a free tool that enables you to market your property, receive monthly payments, handle maintenance work orders, and offers additional features.

Pay attention to how your funds are handled and what protections, if any, are offered.

Hey @Josh Chamois,Most will say credit unions or local banks and while they may not be wrong, there is always your specific situation which needs to be looked at.

I am not sure what the demand looks like specifically, I would look at the rental market for that data and see if you can command the rents you need to make the deal work.