So here's my question:Is it normal to take a pre 90 day LTV to recoup the purchase cost, wait the seasoning period, and refinance the rest of the cash out at a later date?

Right now I would wait to buy. 

I haven’t mentioned it, because I really enjoy this apartment and we feel very at home here, but you going up and down the stairs and slamming both of those doors so loudly have been an issue.

I have heard of some investors not even waiting the 5 years on a commercial mortgage to refinance and as soon as they are able, they immediately do a refi. 

You've just missed it in this RE cycle in my opinion and would be better or waiting. 

It mentions some of Arbor's clients and not in a positive light.

Is it so that the total amount can follow one depreciation schedule across 27.5 yrs instead of 2 schedules I mention above?

So, if you want cheap, then you'll have to wait on them to call you back. 

Wondering since i heard once someone mention an exception if it was this type of move.

If anything, I'm underpaid for as much work as I have to put into these, not to mention the divorces and probates where I'm waiting months for spouses and heirs to fight it out.