The problem was that after I made that down payment of about $45,000, I had very little money to keep expanding.I had to use multiple lower money techniques in order to grow over the years including:-401K loan for down payments on three properties-FHA owner occupied 4 plex with 3.5% down-Conventional mortgages with 5% down on 2 single family homes that I owner occupied and later turn into rentals-BRRRR method on one home to get all my cash back and buy another propertyThe next thing I'm doing is either refinancing or selling a property in order to get way more units.

That surface will survive practically any cleaning technique and, undisturbed, there are of course examples that have lasted millennia.As far as I can tell, grout removal and replacement was not really given to you as an option to deal with the problem.

Try to concentrate on house-hacking technique to digest more before you purchase your first deal.

What are your best techniques to decide on specific areas to purchase houses to rehab?

Do you think that is a reasonable ask given the circumstances mentioned above and any recommendations on negotiation techniques?

But then, I know what I'm doing and I have a very specific list and technique.

Some of the things I know I lack are construction knowledge, live hands on experience on a project, and proper financing techniques..Any advice on the right way to go about this or If anyone Is Interested In chattIng let me know!

Everything else, any motivators and techniques you pick up and employ to increase or 10X your life and productivity are a bonus. 

This method of control is more appropriate for islands and specific inland areas where pest control personnel can make a long term commitment to this technique.

@Daniel Harbuz thank you for replying and does the same techniques apply though or is it different?