I personally wouldn't buy an old home as a rental, I only buy 1980 or newer for myself, all of my properties are in the north part of Gilbert built between 1985-2003.

If it did flood though, I personally would steer clear.

For mobile homes, it often depends on whether the property is considered real estate (attached to land) or personal property (if it’s not).

Personally I wouldn't feel comfortable trying to wholesale a relatives $1M home knowing that I am breaking the law if I cross over into doing anything that can be considered representing them in the transaction, and knowing it will only be marketed to people who buy properties wholesale (typically investors who don't want to pay retail prices), instead of the majority of retail buyers active in the market who are typcially willing to pay more. 

Explore my personal favorites, Set For Life by Scott Trench or The Total Money Makeover by Dave Ramsey, for invaluable financial insights.3.

I have two phones, one for business and one for personal.

I'll let others chime in on their experiences, but from a motivational perspective, I think attending live events and getting the "conference high" is something that only happens through in-person connections and being in the same room with investors who are eagerly pursuing their real estate/financial goals. 

Quote from @Jeff Sanders: Personally coming from an agent/investor in CA, I always get a quote from a broker of mine and make sure I am knowledgeable with the fees/costs.

It separates your personal assets from your business, providing a safeguard if any legal issues arise related to tenants or the property.

I asked when the other person will retire.