@Zachary Sneed - Submission of multiple mortgage applications at the time of each purchase should not be an issue for your credit score, as long as you do them all within a short period of time (such as within 30 days). 

You’re not required to accept a guarantor who doesn’t meet your criteria or to take on more risk than you normally would.If the applicant still can’t meet income requirements even with a qualified cosigner, you can deny based on inability to pay, as long as that standard is applied consistently and documented.

Typical buckets:Income: Rent, late fees, laundry/otherOperating: repairs & maintenance, utilities, insurance, HOA, supplies, advertising, legal/pro fees, bank feesTurnover: cleaning, paint, small replacementsCapEx (capital improvements): roof, HVAC, major appliances, renovations (track separately)Liabilities: security deposits (not income)Auto: mileage (or actuals) + tolls/parking if applicable5) Year-end handoff to your CPA becomes stupid-easyGive them:P&L by propertyBalance sheet (including security deposit liability)CapEx list (date, vendor, amount, what it was)Mileage total + method1099 info if relevant (vendors)PM statements (if applicable)If you want this to feel effortless, the best move is using banking that’s designed for rentals: separate accounts by property, clean transaction feeds, and bookkeeping/reporting that’s “landlord-native.”That’s why I like Baselane for this exact question: it’s banking built for real estate investors, so the workflow above becomes the default instead of a constant discipline test.Full transparency: Baselane is a BiggerPockets partner, but even if they weren’t, the “banking-first bookkeeping” approach is still the right answer for landlords who want clean books without living in spreadsheets.

I manage a bunch and even my most rural property had 15 applicants for cleaners.

2) You naively discriminate against an applicant and they sue you for $50k?

While RentRedi is great for property management, here are some other options to consider:Excel/Google Sheets: A simple, customizable way to track property details, upgrades, expenses, and maintenance.Trello: Good for organizing tasks and progress on specific properties.

A good loan officer should be able to take an application, analyze your current purchase power and give you a step by step to get where you want to be. 

Pay a pm and the profit is significantly reduced 4) alternative below market financing such as assumable, owner finance, wraps, sub to, etc 5) path of progress.

Cost seg is a great strategy when it is applicable - which is not always.Under the specific circumstances described by OP, no losses are possible, hence cost segregation is most likely pointless in this particular case.

Pay an PM and the profit is significantly reduced 4) alternative below market financing such as assumable, owner finance, wraps, sub to, etc 5) path of progress.