Generally larger commercial properties and shopping centers are easier to classify with hard and fast rules, but to the points above the residential areas really move very quickly and have way more nuance than most people care to admit.zip codes are generally way too large for my liking at least in my market to provide any kind of insights other than macro level economics but even then highways or rivers that cut through a zip code can end up with totally different trade areas.we can get pretty granular with cellphone data and with grocery center data to understand the trade areas and their true boundaries, but that kind of data pull is generally only cost effective for investors doing larger scale projects or developments, and honestly we still just end up getting on the ground and feeling it out, so I generally tell people that the money is better spent on a plane ticket and weekend trip in the area you are looking rather than any kind of "trade area" level data studies.and generally B class in 1 area means something different than another. 

You’re going to deduct your tax prep, your internet, your cellphone, your computer, your tablet, your mileage if you’re involved in the properties, your home office, etc etc.

You are generally going to either buy it at 95% of value or what is owed, which ever is lower. 

You can't get "clear title" until all leans are cleared, whichever way that happens SOMETIMES, but not frequently, the 1st and 2nd will combine and both will be included in the auction.

With regard to the proximity to the beach, I tend to have a beach distance of 15 min or 5 mile rule, whichever is less. 

Although whichever option you go with make sure you're also thinking about the long-term property value and what makes the most sense vs trying different angles now that negatively impact future resale/property values down the line. 

However if you are getting the buyer yourself and need an agent to draft paperwork and work as a "transaction broker" - I charge 1% or $3000, whichever is greater. 

For a conventional loan, you can borrow UP to what you paid for the property plus closing costs OR 75% of the appraised value which ever is less.  

Whichever came first. 

It might be a $50 unpaid cell phone bill from when they switched carriers.