We have had a few walk through and done property analysis on several properties, but are not really cognizant of what we are getting into.

We have made an offer for a property and it turns out City of San Diego has asked the seller to replace the uneven side walk by the property does any one has an idea about ball park figure to replace a city side walk?

There is no given answer here, because the whole property needs to be relatively consistent.Kitchens and baths are the common answer, but if they are passable and you choose to invest in them anyways at the expense of peeling paint (or off putting exterior color) and overgrown landscaping, the appraiser and tenant will be walking up with a bad taste in their mouth, thereby not valuing the interior work you have done.But think about the general flow of someone looking to rent: more bedrooms will typically dictate more rent.  

The home also had a small lien.Listened, offered a solution and everyone walked away happy.

An inspection contingency allows you to walk away with escrow but not recoup expenses.Best...

I have gotten several requests lately for video's of the inside of my property from potential guests. Is this becoming a thing, and if you are doing it, what platform are you using since Airbnb will not allow video's?

They would help walk you through chargebacks.

The future buyer might have their own engineer walk when you flip it but if it's done right you'll be fine

It’s a good move to have a contractor walk through before making an offer to estimate costs and timeline. 

We walked the apartment and found some gaps behind the bath vanity (that may have bringing dampness from crawlspace).