There are a number of contractors that can do the testing for you and prices seem to range anywhere from $300/unit to $900/unit. 

Managing contractors and verifying quality of work/timelines can kill a deal.

Hey y'all,I've had a lot of previous experience with rentals (single & small multi family, STR) and did my first flip in 2023 (where I lost a very small amount due to contractors taking 3x the estimated timeline), and I'm looking to finally get into serial flipping.

The local bank allows me to purchase 2-4 investment units with a 30 year conventional loan + renovation loan for all fixes with 20% down The renovation loan is kept in an escrow and paid to the contractors as the work gets done.Anyone buying 2-4 units and doing it this way?

The $85 - $125 copay is the same you would pay for a trip charge by a local contractor. 

You will still have a fight on your hands , the contractors will have some leverage .

You need to pull a permit, then the Contractor has to take down the coping and bond beam a couple feet, then core holes in the pool floor (so it wont ever popout of the ground).

We added $40K-$50K refinishing the hardwood floors, removing wallpaper, painting walls and updating the kitchen & bathroom with new cabinets, adding granite countertops and creating a BEAUTIFUL dining room off the kitchen that was wasted space as an enclosed porch, and also added french doors leading out to a newly-built pre-finished deck we added so the new owners could enjoy their gorgeous fenced in backyard.

Here are the links to both: Enjoy!

It is a good platform and I enjoy it, but I spend more time than I should on it.