Once you establish they are buildable then you need to research utilities, permitting, impact fees, as well as overall development requirements and construction costs.

In regards to Houston area, Nice neighbourhoods with new mud (municipal utility district) run on average 3 to 3.5%.

and also what else can I utilize a realtor for beside the MLS?

In Manhattan you have properties with 20-25% expense ratios despite landlords paying all utilities because rents are hitting $100/PSF.

Tenants are learning more and more of this procedure (and are even shown a video preempting rent court how to do so) and utilizing it in order to escape judgements and eviction.

I plan to personally invest $80,000 cash per year, utilize hard money and constantly leverage any equity or assets to achieve my long term goal.

When I moved to the U.S, I worked in education administration, contract law, and management consulting prior to finding that my aptitude lies in  Real Estate where I am able to utilize my training and education, and combine it with my passion for homes.

My luxury unit is all craigslist, my b/b- unit only 10-15 minutes away is all postlets.

I'm assuming this is in a family neighborhood so vacancy shouldn't be too high)-$2.50/month  And that doesn't include anything utilities, minor repairs or trash.SELL!!  

The typical financial tool would be to utilize the discounted cash flow method to arrive at present value.