My only concern is what if they close shop or sell their business?

Seller will financeLarge building with 3 storage bays/shops on one end1.

Yes, you have to hang your license with an institution because it pragmatically isn't economical to run your own independent shop these days.You're still often brokering or correspondent lending, though, if you work for a mortgage bank or mortgage company (eg, not a "bank" bank, where you can have a checking account).

That will help with DTI.Put a pdf-package together with your financials, summary on the first page, shop it around, should not take you long.

I clean all shared areas of the home, cook occasional meals for guests, lawncare, maintenance, and shop for them (consistently provide milk, bread, basics etc)?

It's a block-by-block play that in my opinion & requires a visit so you can determine where you feel comfortable and also to ensure that you situate yourself where shopping (grocery shopping) is closely available. 

sorry dont understand what it mean body content too short(minimum 3 characters)

Can I shop for title insurance later when I refinance?

This type of financing will typically look very different and more like a traditional commercial real estate loan.That means a DSCR calculated based on a full NOI and expense load (so inclusive of vacancy loss estimates, credit loss estimates, repairs and maintenance, utilities, management fees and more – in addition to the property taxes and insurance expense that are the only expenses factored in on traditional residential style DSCR loan financing).Additionally, the DSCR minimums are generally going to be higher (typically up to 1.25x), the loan to value ratios lower (higher down payments) and underwrite more sophisticated (which makes sense considering the size and scope of the property).Many multifamily investors for properties of this size (such as more than 11 units) can syndicate capital and have more sophisticated financial and entity structures – its definitely a different world once you get up here in unit count.In Conclusion – when you are looking to invest in multifamily real estate and finance your investment – make sure you have the unit count in mind before you start shopping – the unit range can have a huge effect on your options.

The requirement to accept Section 8 does not mean you have to accept his lease violations.I suspect he shopped around and realized he couldn't afford anything else, so he's desperately trying to stay.