@Anthony Finger Welcome to the community, and real estate!
Some questions:
How are you locating deals? Where are your search areas?
In this scenario what are you paying in taxes, HOA fees, insurance, closing/holding costs, what are the market rents for the size and condition of the house you purchased? If you are trying to recoup all of your cash out of pocket within 12-18 months, a deal such as this makes that iffy. These are tight numbers.
I'm assuming numbers for a 100k house of $1,000 Rent, $2500 annual taxes, $1000 insurance, no HOAs, and a 75% LTV refinance (It is possible for 80% as well), initial closing costs of $1200 and refi closing costs of $1200 you're looking at a pretty tight deal regardless. From initial loan to refi, including rehab costs you will be out of pocket about $31k. Cash on cash return of 11.9% with only about 10k in equity/capital gain. So basically, you probably won't get to pull that money out within that time frame allotted. These are of course estimates, but this is what I see.
Also, using a conventional loan will make it more difficult for you to find a discounted property as they take much longer to close than cash and hard money. If done right, the discounts will more than offset the costs of the hard money.
I am a licensed investor. I look to buy properties for myself, wholesale, and perform agent activities for other investors like yourself. If you'd like to connect, just let me know. I look forward to the opportunity.