As far as how hard it is to get the tiles level, it depends on what tile your using.

Depending on location (state) there are options for 80% cash out with no seasoning as long of proof of rehab is provided.

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

It depends on the area for the STR/MTR.

While the deal does not hinge on the ground-up phase, it could provide a significant upside.After consulting with the City Zoning Department and reviewing the dimensional regulations of the neighborhood district, it appears that my plan is feasible.

Based on the few details you provided, it sounds like a 90% LTV conventional vacation home loan would work. 

And I provide Rent to own homes for people with less -than perfect credit 

After experiencing different types of inspections with all kinds of properties from custom builds to existing, it all depends on your end goal , I highly suggest you reach out to a team, really strong team such as @Jorge Vazquez.

Jay is right, this is on the not so good side of town and you’ll be sink tons of money into an investment to not have decent clients and be able to rent the units out for more than $600/800 depending on the size and location.

 @Shravan Hemchand Prior to pulling the trigger on a Cost Seg study, you should evaluate 2 things:1 - How much net additional deprecation tax deductions a Cost Seg study would provide: Best way to get this is by requesting a free feasibility analysis from a Cost Seg provider.