I am also interested in the process of building MFH, but have just started the initial research.

The house is brand new so I figure there should be to many issues and the home comes with a warranty 1 year initially.

I initially was convinced by my mom to purchase a single family home as a sound investment.

@Jaime Rossini,  there is a lot of info missing in your post to allow a full assessment but here is how I would look at the situation if I was to buy with a view to house hacking (live in the vacant unit for a couple of years).Regarding the purchase, this is how I would determine how much gap financing I would need.Purchase Price + Closing Costs for purchase and new mortgage + Cost to Upgrade vacant unit - How much can I afford to invest as my own initial equity?

(but not zoned for) Property is currently offered at 750k , a property right beside almost identical was sold for 725k on conventional mortgage and it was initially offered for 769k. (5.72% decreased on a conventional mortgage that took almost 4 weeks from pending to sold).So based on this data I have estimated(not exact science) that I could give a lowball cash offer for 550k(maybe w/ some luck) but with some room to go up to 635K (which is a 14% decrease on the listing price and hoping to close fast with a cash offer) 70% of $900k is only $630k, which would be the max you could refi. 

style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 1rem; line-height: 22px; font-family: "open sans", sans-serif; vertical-align: baseline; position: relative; overflow: hidden; color: rgb(52, 65, 77); letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; height: 1288px;">BRRRR and a TIP OF THE DAY : )RUN YOUR NUMBERS!!!!

With the market being the way that it is (Early 2021) I offered $180,000 initially with a $1,500 earnest money attached.

I called a different process server and told him that the tenant is smoking in the unit (forgot to mention that in my initial post).

We thought of buying a place in Austin suburbs and renting it out initially and later on (5+ years) perhaps move and live in as well.

There are a handful of things that will make an on-market wholesale difficult, including (but not limited to):- the fact that any sellers agent worth their salt won’t allow your “and/or assigns” language- you need to provide proof of funds with your offer to get the initial offer accepted - your timeframe between accepted offer and when your second deposit will be due is very short and gaining access to the property can be difficult