From a tax perspective, 30 day rentals wont qualify as STR.

They are pretty cheap ($80/month) and I have had good luck with them funding qualified tenants.

I believe I could qualify for an FHA loan, but I’m not sure if I would qualify if I used a co-signer.

@Michell ChaseThe main difference between W2 and 1099-R income is that you have a much easier path to qualifying as a Real Estate Professional without a W2 job.Whether or not qualifying as REP will be helpful to you is case by case. 

Also, the buyer's DTI ratio does not qualify for conventional funding.

Most of the deals that I'm underwriting for clients or for myself struggle to qualify for DSCR loans or pencil out because there's a misalignment between what a property can command in rent and what the monthly debt service will be.

Waiting too long may result in the applicant backing out, and thus, you would miss marketing to and approving other qualified tenants. 

Best to invest the money you would spend on pursuing these claims on better management/tenant screening or building improvements that may attract better qualified tenants.

Even if they aren't qualified, it gives the impression you have a desirable place and those that are qualified will see it and hopefully jump on it.

A company that must report its company applicants will have only up to two individuals who could qualify as company applicants:1.