I have a puppy that tries to attack and play with me when I'm trying to learn stuff.

I also have limited 1st hand experience, but a lot of knowledge in owner financing and notes.  

Own multiple single family rental Homes on Long Island NY

Does anyone have a similar predicament, wherein you may be able to offer multiple solutions to property owners as a buyer, wholesaler and/or agent? 

Multifamily properties are few and far in between, and most the time the owners are asking for way too much.

The owners at the time did not alert me to the change in occupancy and I had to find out about this change on my own thru random inspections of my own.Going forward, with future deals where the units are occupied, what strategies should I utilize to help ensure that I'm not taken by surprise when tenants up and leave.  

The owner buying materials .............is this the same guy that brings his steak to a restaurant and asks them to cook it ?  

Therefore many attorneys don't understand assignments; simultaneous closings; land contracts; structuring owner financing; or purchasing subject to.  

Mortgage on $375K based on 4% for 30 years is $1,790Total Yearly Expense is $29,410 and Monthly expense + Mortgage is $4,241The property is giving income of $5200 a month from all 4 apartments, with monthly Cash flow of under $1,000 a month.Even that Cash flow look very good, the Cap Rate is only 6.28% and COC of 7.67%.Also owner is offering to "hold mortgage for balance" - what does that means?

I use propertyware(software for property owners) which from my understanding pulls data from Transunion, Experian and Equifax.