Personally, I find BTRs to be more predictable with fewer ongoing maintenance issues, and they tend to attract high-quality tenants.

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.

I have personally used the BRRRR strategy over 40 tiems my self in Memphis.

Have you found them to be genuinely helpful in advancing your real estate goals?

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

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

For commercial multifamily, my personal preference is agency 10-year floating-rate debt. 

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

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.

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.