I’d appreciate any advice, tips, or personal experiences from those who’ve successfully scaled using the BRRRR strategy.

It took me 11 years, 25 properties and 76 doors to replace my income but when I bought my first larger commercial deal, it replaced my wife's income in one year. 

Any tips on targeted marketing, effective lead generation, or even some "outside-the-box" tactics?

Be ready for a huge amount of information at your finger tips.

If they are cash-flowing and easy on management, there is no reason to refi to pull the equity because you will really hurt your cash flow with the higher rates.The best first flips to me are dumps that only need direct replacement and not a square footage add or a ton of walls down just for timeline integrity.

I would appreciate tips from anyone who has experience making this model work in these areas or similar markets.Looking forward to your advice and recommendations!

Landlords can enter a tenant's property for a variety of reasons, including: Making repairs or replacements Responding to a tenant's request Removing unauthorized window coverings Preventing waste of utilities Changing filters, testing, or replacing smoke detector batteries Inspections Helping with an emergency inside the unit Posting a notice of eviction"Research your state laws because some of your comments indicate a lack of understanding of the landlord/tenant laws where you are operating (like threatening the tenants to keep the security deposit if they don't respond to you, I doubt that is actually a valid reason to keep their deposit, or evicting for late payments, or charging the tenants for your warranty repairs because you missed your 11 month inspection window which was your responsibility, and it looks like your lease says you can charge up to 18% interest for unpaid fees, is that actually legal?).

However I have had to replace some major appliances recently which had put my in the defecate and added to my motivation to sell (Hot water heater, two refrigerates and a washer/dryer).

I'm not looking to replace my w2 income with it.  

Be ready for a huge amount of information at your finger tips.