Then used Airdna numbers solely now with saturation and inflation.

A 4x increase.and that was when inflation was really low. 

According to data from the Housing Authority of Baltimore City, demand for vouchers remains high, and resources are stretched thin.

However, if I'm just looking at the structure/improvement I believe that a home would depreciate following a curve in the same way that most physical goods depreciate on a curve (in terms of real dollars, adjusted for inflation). 

Take the total income, subtract your known costs and the projected costs, and you'll know how much remains to live on.

I'm currently working on scaling up quickly through purchasing large SFR portfolios and/or apartments, and I'm in preliminary talks with a few sellers willing to carry back a seller 2nd note of 20-30% (i.e. the down payment).I'm looking for a lender that will move forward in financing the initial 70-80%, in 1st position, alongside a seller 2nd of the remaining 20-30%, totaling 100% CLTV.

Thank you Ned, that is exactly right, we actually check a condo/townhouse about 2 weeks ago, the thing was a condo with a basement, I cannot tell if it was a condo or townhome, anyway, the ceiling in the first floor was bowing, the 2nd floor, one of the bedroom was sinking, could not tell how this damage was done but the walls came apart from the floor, you could see the roof of the unit bowing inwards towards the structure a bit, and their "general contractor" estimate that for 5k they could straighten the property and level everything, even 1 window and 1 door looked so uneven that you would think  there was something wrong with your eyes...5k for structural damage, good luck with that one, we ran as far as we could from that....but we have seen they do inflate their ARV, since we learned the hard way , we go through these deals with a magnifying glass, I knew I was not so picky, numbers do not lie.Another thing that caught my attention, which I do not know if I am overly suspicious now that I am older, but they want to get the closing for us at the same time/day they are getting the property from whoever they buying it, which it seems to me they try to save on the closing by having a "dual" closing when in reality is just 1 closing and we are the one paying for it...I do not know there are few things that do not click right with this folks.

.- Conventional loans remain the top financing option (44%).Give it a full read on our BiggerPockets Blog

It seems as if everything remained true here though so the increase in fees is certainly frustrating. 

Example using fictional figures:We buy a 10 acre lot, taxes are $1,000We subdivide it into 10 x 1 acre lotsNo properties are built at this stage, just landDoes the tax remain at $1,000???