Additionally, I have $100,000 in cash in the bank, and my monthly expenses for my home and family are around $3,500.My wife earns between $100,000 and $120,000 from her W2 job, while I've recently lost my job but found a new one that pays $65,000 a year.

., realtor fees) and documented remodel expenses ($50K).

After all expenses, including PITI, we net on average $700/month.

Your cousin should contact the lender to discuss his options.If he rents it out, he must report rental income and expenses (e.g., mortgage interest, taxes, repairs, depreciation) on Schedule E starting when the property is placed in service.

Hopefully, not an expensive tenant or Fair Housing lawsuit.100% of what @Travis Biziorek states is true, but he left out a key fact - he lived in the Detroit area when he started investing here, so was able to self-manage and meet everyone he had to hire face-to-face.

Lowering your standards invites expensive evictions and repairs. 

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

Less than 10 minutes and they are done.Self Managed, Low Volume - these folks collect the same rent every month, have minimal expenses beyond their mortgage and find it very easy to collect the few documents they have to report it. 

It scales up to 37% once you get to around $12k of income but the UBIT is calculated after the first $1000 is deducted along with expenses and depreciation again only on the same % the property is mortgaged.

While these technically exist, these are typically difficult to execute and are very expensive.