The company I work for has developed good relationships with suppliers and subsequently the clients benefit from that relationship. 

The good part of vertical integration is we have enterprise-grade software and data with dashboards and graphs and all the bells and whistles to see problem areas at-a-glance at any time, in real time.5.

What I would create is such an enterprise with pooled investors -- I might just do that. 

Vetting is a different issue...unless you are dealing with a national chain or a known, substantial enterprise, you should require a personal guarantee from an officer or manager of the company.

The husband should go through probate; takes 45 to 60 days, but an assignment and subsequent license to sell from the probate court solves your problem. 

I would politely tell him (subsequent of a casual convo) “Hey, just so you know, I had to evict a tennent because of smoking.”This lets him know that you know what’s going on, without being force full or causing neighborly strife.

"Rich Dad Poor Dad" and the subsequent books in the series.

The lower risk the property the lower risk the tenant so I created The Ultimate Guide to Grading Cleveland Neighborhoods to help investors determine what risk level is associated with each property they are looking into to allow them to gather a bit more of an estimation on tenant behavior and subsequent costs the rely upon it.As for large Cap Ex items here are a few things to note that should help you out.Water tanks are going to cost roughly $1,000 to replace and will last around 15 years.Furnaces are going to cost roughly $3,000 to replace and will last around 30 years.A roof on a 1,200 sq ft bungalow is going to cost around $5,000 to replace and will last around 30 years.

Also, as others have mentioned, you get the upfront depreciation but will get less of the deduction in subsequent years. 

As mentioned above, if you were to secure a blanket loan on the 4 rentals (either rate/term or cash-out refi), it would remove your existing lienholders, place the new loan into a DSCR loan which does not impact your DTI, and subsequently reduce your personal DTI at the same time.Then, continue to scale with DSCR loans.