Scale quickly, BUY more LOL, not sure what else to say, 

Unless there is significant equity in the property 50% LTV may not be enough to payoff the current underlying mortgage.Now here are the exceptions to lift the COB 50% limited LTV restriction:- you inherit the property and it was transferred into your name either via legal award from a domestic partnership/marriage - you have been on title for 24 + months- you took title to the property that was transferred from a partnership or partnership like entity (LLC, LP, etc) that you can document the ownership of 25% or more in- you lived in the property and have been on title for atleast 12 months as a primary residence- you have paid the mortgage for atleast 12 months - or you can demonstrate a relationship with the obligator (domestic partner, relative, family member, etc. )If you qualify for one of the exceptions you are not limited to the 50% max LTV  when considering fannie/freddie conventional cash out refinances on a subject to transaction.

We require anyone over the age of 18 to apply to live in the property if they will live there more than 14 consecutive days, that is written in our lease.

I believe there is an exception if it's a municipal sewer but would need to look more into this as it's usually a special situation.

We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

The builder will have more control after the project starts.

Makes sense about just talking to them / asking them directly, and that's helpful to get more perspective on how you might approach reviewing credit.

These laws are becoming more prevalent because unlicensed hacks are doing construction and remodeling.

Whether it will increase interest rate, make it more difficult to find a lender, etc.

That said, we have built and sold 34 of these build-to-rent properties this year and are continuing to buy more lots for future development.