Quote from @Sri Reddy: I am a newbie to real estate investing and looking for guidance from the teams here to understand the sources from where we can find any small retail spaces to buy.

You need to learn how to analyze property and determine if they are a good investment.Here's a guide that describes how to analyze a property.https://www.biggerpockets.com/blog/rental-property-cash-flow...

I recently came in contact with a RE investor who is farther down the line in his career than I am. When I asked him where he gets his deals from, he said wholesalers, word of mouth, and bigger pockets. It surprised m...

Here's a detailed guide on how to screen applicants: Application Screening Guide

You could force the seller to bring it up to code before the sale is complete as one of the contingencies of buying it, let them deal with it.

An opportunity to buy my second property has come.

Can you buy a house and be within reason of what your current rent? 

Quote from @Jaycee Greene: Quote from @Mark Daniels: I know in residential lending you can get a HELOC to borrow a down payment to buy another property.

You can buy and rent anywhere.

Check out Every Landlord's Legal Guide by NOLO.