It was beautiful when he finished.

I would focus on repairing your credit. see a specialist (faster) or open credit cards little by little and pay them off each month. im not saying increase your spending, just saying instead of buying that tank of gas in cash use a cc and immediately pay it off. while your credit is repairing, start banking cash. build a budget and stick to it. 80K a year is good money, make it a goal of yours to retain as much of it as possible i.e. don't eat out, don't go to the local pub, drive a modest paid off car etc. once your credit is up and savings is up, use the 80k a year plus savings to get leverage. then use that leverage to buy your properties. if your looking for a get rich quick scheme, id advise u skip over RE. don't get me wrong, you can make money fast by flipping homes but you didn't mention having experience in that area so I assume you don't. another option if your really in a hurry is to find a partner with experience and cash, and see if you can buy into one of his/hers deals. you would have to market yourself for this and see what type of skills they may need that you have. maybe you can buy in and use your web development skills to beef up and/or maintain your partners website saving them money on outsourcing. that might be your ticket into a partnership. since you mentioned your helping your friend, maybe you can partner with him?

How much money do you need to finish the rehab?

I have heard that a good rule of thumb for a quick land sales flip is to price it for sale at half the rate of comparable land, while making double your money.So, with that being said, I would research demand and land prices for comps on a popular land website like landwatch.com. 

Glad you joined the best real estate investing website!

I have finally finished and have a renter in, but what now?

No, I think by the time I finished writing that post, I was thinking "Forget it".

I have seen this on Seth's website.

Once I feel I have an appropriate rent price, I require all of my prospective tenants to complete an application through an online credit check & tenant application website.  

There are at least a thousand posts on this website about them you could search.