Part 1 - Dutch Repayment Schedule: This is the most common method of repayment.

Haven't had any issues with withdrawing my funds.

Between technology, the media coverage and the settlement itself, while the vast majority of sales will probably still be on market (MLS itself could have some issues going forward as a result of this settlement) but on the margins there will be an uptick of fsbo, of discount brokerages, again it won’t fundamentally change the majority of transactions but I expect the housing market to get even weirder than it already has been the past few years.

Overall our home is very clean, and that is mostly due to the fact that we pay a professional cleaner to come through and do all of the common spaces every 2 weeks.

With the numbers you shared, and the common 75% of ARV calculation you would be heavily underwater if you buy this house at 300,000. 

Other considerations things to look at include; are any utilities common (like paying for a boiler for all 4 units instead of individual furnaces), how does access/common areas work, do the tenants all have access to laundry, are there any common area utilities (light common area lights, electric or gas for laundry) that would stay in the owner name.  

I guess I'm asking how common this is; if I would have been successful in somehow negotiating out of that clause; and if I have ay options to remove PMI at all?

any legal issues I should know about?

I'm curious about the usual practice in construction projects and whether it's common for general contractors to handle the permit process as part of their services. 

Buying as a primary allows you to put as little as 3.5% to 5% down.If you do have any issues with the business down the road you can always use a DSCR program which allows investors to buy an property without having to show income or employment.