CalifCalifornia is so tennant friendly that I lose control of an asset that I purchasedIf I'm going to rent it the lease agreement wasn't of my doing.If I'm flipping to sell (my primary focus) there's someone living in my construction site.Bottom line, I'm buying a house, not a Tennant, squatter or whatever.

I am concerned with rent control as well....The lease is for one yearI know from basement tenant that they signed lease with the sister (but the lease has previous owner's name)if it is fraud - it will be her word against minebasement tenant are probably here illegally and I doubt they would testify

Round up seems to be the consensus solution for weed control.

Worst case scenario, I can take control and sell one of his property to pay lender, right?

Roof and attic insulation are key factors in controlling the heat load.Commercial HVAC sizing is based on that plus the addition of heat from air supplied from the outside to replace "stale" air indoors - local ordinances often require specified amounts of air replacement - in an occupied space and also from the number and activity of individuals expected to occupy that space.

In most jurisdictions it will make the primary rent controlled.  

Additionally problems that may exist that the title company has no control over gets blamed on them.

Alternatively, once the existing tenant is out, you can lease at market rate.The real challenge of "non-landlord friendly" areas in the form of: your ability to adjust their rent from one lease term to the next, rent control issues that would limit your ability to ever push rent increases over time, any mandates on required renewal options for existing tenants (typically come with rent control measures) and the ease and speed with which evictions are processed. 

On the broker side, I like having a little bit more control over the process like being able to talk to the UW, ordering appraisals through my AMC, and handling all third party communications. 

Consistency with contractors and controlling material costs can make all the difference.