That's where bad experience/nightmare come in.Lastly, to answer your question, to build a basically designed, square/rectangular house without crazy jigsaw puzzled cuts on roof, the following price is a good competitive construction only price for what you need to do:Around $165 per sq ft on conditioned space (for an average 1200 to 1800 sq ft house, 8-9ft high ceiling, everything is investor grade finishes), $90-100 per sq ft for garages/unconditioned storage, $60 per sq ft for porches/opened spaces.  

Hey @Annwar Zahrieh - if I'm in your shoes I would recommend going out to Philly and attending a couple of networking events to brush shoulders with other investors in the city. 

Things like office, self storage, retail, etc.   

Most in your shoes want to move as quickly as possible and sometimes slowing down & being more deliberate will save you time and money in the long run.

If I were in your shoes, I would change my mentality to how can I convince an appraiser to give me more value to what is the worst case scenario, if the value comes in lower. 

ADU, parking, storage, laundry).

Our Self Storage developments, the same thing. 

The structure and roof is good with some issues I want fixed:-covert fuse box to 200amp cb panel-storage shed/garage water damageI’m seeking advice on how to make an offer with either the seller repairing these items (another investor I’m not sure I trust to do it properly) or asking for funds at closing (escrow). 

You move you're stuff into temporary storage and then move it back into your new property. 

I am working through a PSA for the purchase of a self storage property and I would like to know what surveys you would say area) criticalb) nice to havec) unnecessarywhen acquiring a self storage facility especially given standard exceptions in title policies.