The LTV amount is determined by the lender, your qualifications, and loan terms you choose.

You are asking us to make a determination based on 1 of many factors. 

Also, looking to see what my CAP rate will be to determine value of building after construction is complete, in case I want to sell it shortly after completion.

How much you pay for rent also determines if scenario 3 is worth doing or not.Don't forget to live there for at least 2 years to get the tax free gains of $250k filing single or $500k married!

Understanding your renter profile can help determine your property management needs, assess whether your existing amenities are well suited for your tenant base, and define your target audience to market the property.TIP: Ask the seller or the management company for as much information as possible on the current renter profile.

I am looking for book recommendations on how to determine my investment strategy/my Crystal Clear Criteria.

I am meeting with a realtor to determine the property value as is and with some rehab.

How much proof is required and who determines it? 

And yes, hire an inspector or even a contractor to determine the cost of the repair, if the number still makes sense, do it.

I’ve tried many of the free available calculators to determine cash flow and i come up with about $150-200/month after accounting for current mortgage, taxes, insurance (not landlord policy yet, is landlord typically more expensive?)