From an actuarial standpoint, I would be completely shocked if there was any data to support a greater risk of claims based on the length of a tenant's lease.

It's a new construction so I have no data to estimate the expenses.

Or would a roll roof be a large decrease in value?

Yes, those things absolutely will affect the value of any home you purchase.The better question to ask is what is this house worth today, and is it likely to increase, decrease, or stay the same in value? 

Of course, the estimate is only as good as the data being entered. 

As someone who has done this remotely, I can say she's been invaluable, and is always up to give me her honest opinion, which I can't value enough.

I’ll need ~$400k if they won’t let us close with that 2nd and ~$150k if they will.The park is a 10 cap at 1.75 as is and is a 14 cap at purchase or worth 2.5M at a 10 cap after we sub-meter.There is another 200k in lots we can parcel off and sell, another 720k in value if we add 20 more spots, ~50k in timber, and lot rents can likey go up another $25, adding another $240k.I can likely bring an equity partner in, but because I can get most of my money out so quickly with the seller’s 2nd and all of my money + 250k out after ~1 yr, I’d like to try and solve the short term capital problem.Anyone know of a lender who will let me close with the 2nd in place, or someone who can set me up a ~$350k line of credit or perhaps some transactional funding? 

Some real estate investment plays are for appreciation and I don’t have data or a graph to present but my educated guess is that it is in the minority as much of it is for cash flow and or value added propositions to force the appreciation.

Please keep in mind that the BA is very different than "California", so don't take general CA data and apply it to this local economy. 

several issues: (1) obtain environmental monitoring data to see if current tanks are not leaking(2) how old are tanks. did the gas station replace older tanks?