In short, they put more weight on the performance of the asset versus a residential lender.  

Things started to change rapidly for me once I scaled to 5 units.

@Hai Loc the property has appreciated by around $5K in the past 6 months; the area I live in is appreciating in general quite rapidly. 

Rising rents and falling vacancies are helping fuel strong investor demand in the multifamily sector and should lead to record-setting origination volume between $385 billion and $410 billion for the year, according to the Freddie Mac Multifamily Midyear Outlook.Freddie Mac Multifamily notes rapidly improving economic conditions and loosening of restrictions throughout the country have improved the outlook for the multifamily market.

Property damage can rapidly get into the tens of thousands. 

I want to expand rapidly, but finding financing after 6 properties is proving to be difficult.

I am located in Greenville after a long brokerage and investing career in Silicon Valley - also spent ten years in Forest Hills Queens.Greenville is more of a capital growth market an appreciation market rather than a cash flow market.Clearly, investors want both cash flow and appreciation, but I have found the relative weighting given to either is a function of where an individual is at in his or her career, income level, and particular needs.I believe (my opinion and I understand others think differently) is that early on and into peak income years - the proper focus is on appreciation - growing that nest egg   long term - one has sufficient income and does not need income from RE to live.

If seller credits became overly generous, housing prices would ultimately increase at a more rapid pace which will deter more buyers from purchasing in the long-run.Seller credits (seller concessions) are closing costs that the seller agrees to pay on behalf of the buyer.This is often a win-win scenario as the seller is able to get the deal done, and the buyer is able to purchase their home while mitigating the additional expenses at settlement.

Able to absorb and hold an eye popping 20 times its weight.

How much weight should I give to timing the purchase around the students?