In the book "What Every Investor Needs to Know About Cash Flow" the author talks about not just vacancy but also factoring in rent that you can't collect for various reasons, for example a tenant who refuses to pay but is still living in the property (not technically a vacancy).

For example, my acquisition loan amount is $18,000 ($20k purchase price minus $2k down).

For example, they calculated the full replacement cost of my 3 family in Shaw as $625,000, but I have coverage for $350,000 (slightly above value). 

Get an estoppel certificate (click here for example) immediately.

That being said - it also depends on the property/location/sales price of the property etc... this is just an example based on our particular situation.

I have had trouble with accurately estimating rehab costs I'm not sure if the best route is to start calling subcontractors and ask for bids on an example house or if I should just get a GC or someone who is experienced in the area to walk properties with me at the start?

On the settlement statement: the title company should list the purchase price and underneath that brake down of the rehab cost. for example: Purchase price: $55k + New Roof $10k + Fencing 2k + GC quote $15k (GC quote should be provided as scope of work) . 3.

If the house is overpriced at $520,000, as an example, anyone with a max budget at $500,000 won't see it.

Example:  I just had a punk move out, trashed my doors!!

Take Indianapolis, Indiana for example, where 20% - 30% profit margins are the norm.