You say "but I thought this was affordable housing, more like rent", aahhh yes young grasshopper, that is why we list them not by price but by averaged payment, and when they make application it is offered that they may buy said property for XYZ and than only need pay the lot rent of 123, OR, the park has "financing available" that will be an "anticipated" monthly payment of XYZ, but after the application there EXACT interest rate can be determined, also factoring what they have for a down on it. 

If they send back an application for the new tenant (the offender) by what basis can i deny his application?

Take advantage of the ability to help offset a vehicle cost, pay for your phone, home office if applicable, FUND RETIREMENT ACCOUNTS FOR YOU AND YOUR SPOUSE.

I am a software developer by profession and most of my real estate investment fund comes from creating enterprise and web applications for well known companies as a consultant. 

When they have interested applicants, they can apply with you, but you will NOT rent to them if they don't meet your written criteria. 

I would like to know what type of credit cards(Visa/MasterCard) and banks i should be looking at for opening a new card that would help report to all 3 as well as assist me in maintaining good credit.

Work with an RMLO to determine applicants ability to get credit for purchase within option expiration time frame.Until I can figure out the proper way to setup these types of transactions I will not be using them, if ever.

Even with new condo neighborhoods getting built all the time, there wasn't really enough housing stock to meet demand.But the carrying costs of these properties for renters and home owners vis-a-vis their incomes have gotten pretty burdensome.

After my first tenants gave notice, I was inundated with 8 applications that all had passed Melissa's initial screening. 

Get access to the County Recorders online database.Search on the APN, address, or grantor - grantee names.The LAST SALES price is the next FMV until a new appraisal is created during the loan application process.