If they understand clearly that 3x monthly income, no evictions, credit and criminal (whatever you choose), and required funds upfront with a lease signing to get the keys are the minimum qualifications....

*Making sure your rental properties have great curb appeal*Making sure you have a legal Rental Lease Agreement*Deciding whether to have your lease agreement as a month to month or annual**Making sure you have a legal Application form*Making sure you have a legal Criteria Qualification Policy*Doing Credit Checks and how much do you charge*Learning how to read a credit check report*Learning how to choose Tenants*Learning how to keep your tenants long term*Receiving calls all day and night from tenants or your repair men.  

Secondly if you buy jointly with them and they pay the mortgage for a min of 12 months you can remove this obligation from your debt to income ratios or qualification.

Understand discrimination issues, rent qualifications and application procedures.

Have you ever had experience with that loan type or been contracted to do the audits for them and if so, can you run through the basic process or any pre-qualifications that need to be met prior to approval?

If its sounding promising at that point, start asking about rates and terms and getting into their detailed qualifications.

So you might not be able to use that rental income (on paper only) to boost your mortgage qualifications.

We suggested qualifying the loan under one (my) income only (which exceeds the minimum income qualifications), but underwriting has indicated that both LLC members are required to qualify. 

@Brie Schmidt has an excellent reputation on this site and can guide you with finding a property that fits your budget, and qualifications.

I qualify for the HARP, but you do not as one of the criteria, for qualifications is the property is your Primary Residence.