@Charles Evans, definitely keep all paperwork associated with your tenant (lease, receipts, etc).For expenses that are not split per unit but are for the entire structure (utilities if not separately metered, mortgage interest, etc), keep a record of those payments so your tax pro can deduct a percentage of them for the unit you're renting.

Looking for building from 1950-2010 anywhere from 10-100 units.

I've been doing that strategy in Ohio to scale, but you need to live in one of the units. 

Looking to net 4 figures a month in cash flow with this unit - the goal is to close 7 more by the end of the year - let's see how it goes. 

Negotiate turning the units yourself once a tenant vacates.

I've done refis with section 8 tenants in the units from traditional banks and dscr lenders.

Service disruptions can understandably lead to frustration.From my perspective in the self-directed IRA industry, effective communication and responsiveness during transitions are crucial to maintaining client trust.

I will self manage and dont need a lot of cashflow.

There is quite a few forums that already discuss this topic, but buying 1-4 units in an LLC with a DSCR loan also comes with higher rates at the cost of using an LLC

Mike - Yes, I would say it is best for properties 10 units and up, but the best I have found.