With current prices and interest rates, you're not cash flowing with LTRs.

I will give you the numbers then tell you mu strategy idea. house purchased for 415,000 in august of 2020 at a sub 4% rate but I treat it as 4% because I am not 100% sure what the rate is (I am getting into contact with realtor soon don't worry)The house could rent for 2,500 per month at minimum and I think I could get 2600-2900 but not 100% sure.It is now on the market for 600, 000 but I think I could get it to 575 since it has been up for a couple months.well 575,000 at a 7% APR is way higher than the rent so I was thinking I could do a seller financed route.

With low cap rates and high revenue and profit, valuations are off the charts!!!...

I am opening a business in Mexico city (Hair salon) for my wife so get some short term income, Also I am heavily invested in the US stock market but at this time it is not going no where until we have some rate cuts. 

Long term I anticipate construction costs will generally soften as the high-rate environment continues and stifles development.

While opinions may vary, I rely on data to help drive real estate decisions and planning.Key ConsiderationsEducational Attainment: 77008 boasts higher numbers of residents with bachelor's (12,241) and master's degrees (5,739) compared to 77063.Demographics: 77063 has a higher percentage of foreign-born residents (41.02%) which typically indicates a strong rental market and with 76.86% renter-occupied versus 32.60% in 77008.Economic Factors: Median income in 77008 is $140,609 with a low unemployment rate of 3.37%, whereas 77063 shows lower median income ($51,899), higher unemployment (9.99%), and more families below the poverty level (16.51%), which may indicate economic diversity but also potential rental payment risks​​.Age Distribution: 77008 has more middle-aged residents (35-54) [8970 compared to 6,115] and a slightly higher proportion of young adults (25-34) compared to 77063 but both are popular with younger adults suggesting strong rental markets equally exist.

Many HELOC or second mortgages are fixed interest rates and depending on the loan amount, even offer 100% online and no appraisal requirement for issuance.

My CPA is saying I have to pro rate those expenses for the number of nights that it was actually rented out, but I can't find anything online that confirms that.

Either way, would I be taxed at the normal capital gains rate (for me it’s 15%) for each share that sells?

If you're providing an "up-scale" environment and hope to attract more guests of this calibre (I do; they don't quibble about higher nightly rates and rarely cause problems) then I recommend white duvet covers and wash them after each guest.