Some DUS lenders might want one of the guarantors to have previous experience with them in particular ... some are more stringent on comparing the strength of the new borrower against the current one.  

While I agree the property value in the area are comparable with the 100-120k value.

The cost of the office is trivial compared to a manager considered as your employee!

I agree though, if there is mold, the $300 is nothing compared to the remediation costs.Do you just always do a mold inspection no matter what?  

Single-hung usually next in line, then double-hung... casement/awning windows of comparable size are usually the most costly of the common window types.Be sure to pay attention to the egress needs - while a 2650 DH might meet egress, a 2650 casement may not (or it may need side pivot hardware).I could write a small novel on what to look for when buying windows... however, sleep beckons.

Mark Ferguson Haha, no, manufacturing is the very least you could compare it to.

I've got some ideas on how to compare this house with selling and putting a down payment on 2 other smaller houses as well.  

Maryland seems to have pretty low filing fees comparable to other states at $100.

I agree 70% rule is kind of simplification, but finally i see the main difference between flipping and building is that while flipping goes you earn money on buying with cheapest repairing, but while new development/deep rehab goes you earn money getting adding value for highest market price comparing of rounded properties in this location. 

I bought the house for $105k and many comparable homes in the area have gone for $120-135k the past 6 months.