As a real estate investor, I’ve learned the hard way about the mistakes that can cost time and deals.

A 0% APR credit card is a smart move for materials, but for labor costs, you might explore a private or hard money lender, especially since your loan term is only 3-4 months.

One month of vacancy has cost you $2,400.

Repair costs would be $150k.

Cost efficiency while enhancing the design and functionality of the property What was the outcome?

If you treat this like a hobby, it will eventually cost you a lot more than you want to pay.

If the credit screening costs $25, then you earn nothing.I believe there are exceptions for a higher fee, but you have to stick to the actual cost of the screening.I would talk to an attorney before charging more than $25 per applicant.

Over time, cost of insurance, monthly charges, and surrender fees (which can last 10+ years) reduce how quickly your cash value grows.3.Policy Loan Costs & PerformanceYou’ll still pay interest when borrowing against your policy.

My biggest mistakes that have cost me dearly have all been contractor related, so my advice would be to vet your contractors as much as possible. 

There's no real hard and fast way or only 1 way or doing your first 2 points. your subject line suggests you're not looking to go to a large shop like a JLL or a CBRE which honestly I don't blame you those offices are usually pretty bloated.As far as monthly costs, if you are going to individually get a costar or other such license you are probably looking at $500-$1000 a month pretty easy in overhead once you have office dues, mls dues, marketing, etc.